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wivvy's dad
Cabbage club member #3
Joined: 13 Apr 2005
Posts: 14655
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 Posted: Fri Dec 09, 2005 10:48 am Post subject: |
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| BlueRR wrote: | | wivvy's dad wrote: | | BlueRR wrote: | Dave telling me my new sig is a bit "Wivvy's Dad" !!!!! hmmmmm  |
There's two ways to take that  or  |
Nah, just Dave feeling inferiour  |
Darwin's theory should take care of him then |
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f1reblade
MotoGP Racer
Joined: 03 May 2004
Posts: 2896
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| Posted: Fri Dec 09, 2005 10:50 am Post subject: |
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| wivvy's dad wrote: | | BlueRR wrote: | | wivvy's dad wrote: | | BlueRR wrote: | | Dave telling me my new sig is a bit "Wivvy's Dad" !!!!! hmmmmm |
There's two ways to take that or |
Nah, just Dave feeling inferiour |
Darwin's theory should take care of him then |
 Soz dude.... don't "do" Darwin just the teory of relativity....
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f1reblade
MotoGP Racer
Joined: 03 May 2004
Posts: 2896
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| Posted: Fri Dec 09, 2005 10:51 am Post subject: |
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Oh yeah and OHM's law...... 
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wivvy's dad
Cabbage club member #3
Joined: 13 Apr 2005
Posts: 14655
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| Posted: Fri Dec 09, 2005 10:59 am Post subject: |
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| f1reblade wrote: | | Oh yeah and OHM's law...... |
Like this?
This excercise will help you determine the relationship between voltage (V), amperage (I) and resistance (R). This relationship is called Ohm's Law
This experiment consists of modifying a circuit. The circuit is made up of four parts:
1. a battery : A battery has a positive and negative terminal that creates a potential difference. This is frequently, but erroneously, taken as being equivalent to potential energy. They are not identical. Potential difference is proportional to potential energy and the two can be related via the work done per unit charge. This measure of energy per unit charge is measured is called voltage (V) and the unit of measurement is called volts.
2. a wire, which has resistance (R). Resistance inhibits the amount of current running along the circuit. The greater the resistance, the lower the current. Resistance is a bit like inertia in mechanics. For a given force, the greater the mass (inertia) the lower the acceleration. Here, for a given voltage, material with high resistivity will inhibit the flow of electrons (\eg current) through it.
3. a lightbulb which has an amperage (I). Amps are the unit of current and current is the amount of electrons that flow down the wire per unit time. This current is converted to power by the resistive element inside the light bulb. The length of time that you leave the light bulb on determines the total amount of energy which has been used.
4. a switch, which turns the system on and off.
The problem consists of two parts:
1. Find the formula which describes Ohm's Law; that is, find the mathematical relationship between voltage (V), amperage (I), and resistance (R).
2. Determine the amperage of the lightbulb.
The first part will be discovered through a trial-and-error experiment. You are given a circuit on which you may vary the voltage by choosing from a variety of batteries and the resistance by adding resistors to the circuit. You will then turn on the switch, allowing current to flow through the circuit. If the resistance is too low, the lightbulb will receive too much current, and will explode. If the resistance is too great, the lightbulb will not receive e nough current, and will not light. If the resistance is just right, the lightbulb will light up. (Note: real light bulbs are not perfect ohmic resistors as is the case here and will light partially with any amount of current).
If the lightbulb explodes or fails to light, turn off the switch (which automatically replaces the lightbulb) and try again.
First, concentrate on changing the resistance to get the lightbulb to turn on. Once you get a working circuit write down your values, change the value of the battery, and try again. You should begin to see the relationship between V, I, an d R. You should then be able to derive what the Amperage of the lightbulb is. |
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f1reblade
MotoGP Racer
Joined: 03 May 2004
Posts: 2896
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| Posted: Fri Dec 09, 2005 11:03 am Post subject: |
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What and this "P1ssed you off" today when your bike wouldn't start....?
I told ya not to use the heated muffs
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wivvy's dad
Cabbage club member #3
Joined: 13 Apr 2005
Posts: 14655
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| Posted: Fri Dec 09, 2005 11:16 am Post subject: |
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| f1reblade wrote: | What and this "P1ssed you off" today when your bike wouldn't start....?
I told ya not to use the heated muffs |
Sorry, haven't taken my irony tablets this morning |
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pip
Pip Pedrosa
Joined: 04 May 2005
Posts: 1637
Location: South of Heaven
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| Posted: Fri Dec 09, 2005 11:39 am Post subject: |
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| a hangover from hell. i think i might still be drunk. |
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f1reblade
MotoGP Racer
Joined: 03 May 2004
Posts: 2896
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| Posted: Fri Dec 09, 2005 12:03 pm Post subject: |
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Pop one of WD54's irony tablets..... oh and a long drink of water
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CHILLI
202.9mph Raspberry Ripple
Joined: 31 May 2004
Posts: 7857
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| Posted: Fri Dec 09, 2005 12:08 pm Post subject: |
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| pip wrote: | | a hangover from hell. i think i might still be drunk. |
Just keep topping it up then
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Incubus
+1 up for a spanking
Joined: 31 Jul 2004
Posts: 9973
Location: Brighton
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| Posted: Fri Dec 09, 2005 12:21 pm Post subject: |
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| wivvy's dad wrote: | | f1reblade wrote: | | Oh yeah and OHM's law...... |
Like this?
This excercise will help you determine the relationship between voltage (V), amperage (I) and resistance (R). This relationship is called Ohm's Law
This experiment consists of modifying a circuit. The circuit is made up of four parts:
1. a battery : A battery has a positive and negative terminal that creates a potential difference. This is frequently, but erroneously, taken as being equivalent to potential energy. They are not identical. Potential difference is proportional to potential energy and the two can be related via the work done per unit charge. This measure of energy per unit charge is measured is called voltage (V) and the unit of measurement is called volts.
2. a wire, which has resistance (R). Resistance inhibits the amount of current running along the circuit. The greater the resistance, the lower the current. Resistance is a bit like inertia in mechanics. For a given force, the greater the mass (inertia) the lower the acceleration. Here, for a given voltage, material with high resistivity will inhibit the flow of electrons (\eg current) through it.
3. a lightbulb which has an amperage (I). Amps are the unit of current and current is the amount of electrons that flow down the wire per unit time. This current is converted to power by the resistive element inside the light bulb. The length of time that you leave the light bulb on determines the total amount of energy which has been used.
4. a switch, which turns the system on and off.
The problem consists of two parts:
1. Find the formula which describes Ohm's Law; that is, find the mathematical relationship between voltage (V), amperage (I), and resistance (R).
2. Determine the amperage of the lightbulb.
The first part will be discovered through a trial-and-error experiment. You are given a circuit on which you may vary the voltage by choosing from a variety of batteries and the resistance by adding resistors to the circuit. You will then turn on the switch, allowing current to flow through the circuit. If the resistance is too low, the lightbulb will receive too much current, and will explode. If the resistance is too great, the lightbulb will not receive e nough current, and will not light. If the resistance is just right, the lightbulb will light up. (Note: real light bulbs are not perfect ohmic resistors as is the case here and will light partially with any amount of current).
If the lightbulb explodes or fails to light, turn off the switch (which automatically replaces the lightbulb) and try again.
First, concentrate on changing the resistance to get the lightbulb to turn on. Once you get a working circuit write down your values, change the value of the battery, and try again. You should begin to see the relationship between V, I, an d R. You should then be able to derive what the Amperage of the lightbulb is. |
ooh spot the sparky
V = I X R
R = V divided by I
I = V divede by R
most commonly for sparkies when we were taught this at college we drew it as a triangle with V at the top point then I & R underneath it
Like this:
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Tiny
MotoGP Racer
Joined: 10 Dec 2004
Posts: 2519
Location: God's Right Hand
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| Posted: Fri Dec 09, 2005 12:39 pm Post subject: |
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Waiting for the hand-over of keys, so we can move in. GGGGrrrrr.
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I'd rather have a full bottle infront of me, than a full frontal Lobotomy |
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BlueRR
MotoGP Racer
Joined: 06 Apr 2005
Posts: 2872
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| Posted: Fri Dec 09, 2005 1:53 pm Post subject: |
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| spitefuljack wrote: | | Waiting for the hand-over of keys, so we can move in. GGGGrrrrr. |
Moving is always very stressful  ... generally goes to plan eventually though 
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wivvy's dad
Cabbage club member #3
Joined: 13 Apr 2005
Posts: 14655
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| Posted: Fri Dec 09, 2005 7:28 pm Post subject: |
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Sig back to normal then?
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Loco
Monkey With a Machine Gun
Joined: 12 Jan 2005
Posts: 2646
Location: Lost in Space
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| Posted: Fri Dec 09, 2005 7:45 pm Post subject: |
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Saw 2 downed bikes today both had had people in cages pull out on them front ends proper stoved in 
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Matty
Cant keep it up!
Joined: 25 Mar 2004
Posts: 3547
Location: Peacehaven, somewhere between the mad house and my bike!
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| Posted: Sat Dec 10, 2005 1:36 am Post subject: |
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| Incubus wrote: |
ooh spot the sparky
V = I X R
R = V divided by I
I = V divede by R
most commonly for sparkies when we were taught this at college we drew it as a triangle with V at the top point then I & R underneath it
Like this:
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yeah i did all that in electronics at school, i have a book 2" thick (electronics bible) left over somewhere from my studies |
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fosters
World Superbike Racer
Joined: 30 Sep 2005
Posts: 1516
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| Posted: Sat Dec 10, 2005 2:22 am Post subject: |
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My new mobile phone dying mid conversation  |
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Incubus
+1 up for a spanking
Joined: 31 Jul 2004
Posts: 9973
Location: Brighton
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| Posted: Sat Dec 10, 2005 10:12 am Post subject: |
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hangover this morning plus drove all the way into work only to discover workshop keys were still at home so had to go back and get them
ho hum
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Dr Lurve
Guest
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| Posted: Sat Dec 10, 2005 12:15 pm Post subject: |
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| Leg still 'urts |
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tony vtr
Can't make his 'kin mind up
Joined: 28 Mar 2005
Posts: 2728
Location: crawley
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| Posted: Sat Dec 10, 2005 1:14 pm Post subject: |
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went to go out in car at 8.30 am and.......battery ferked!!  ...got a new one and all sorted now....30quid for a 605amp!!bargain!! |
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Baloo
Guest
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| Posted: Sat Dec 10, 2005 1:17 pm Post subject: |
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Looking outside at the clear dry weather, checking the bike over to discover a puncture in the rear tyre (the one that has only done 120 miles!) and the nearest tyre place shuts at 12.30 and I cannot get over there in time.
Now having to wait 'til next weekend to get it fixed / replaced! |
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Tinks
Fairy Grandmoderator
Joined: 08 Feb 2004
Posts: 19443
Location: Away with the fairys.
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| Posted: Sat Dec 10, 2005 1:21 pm Post subject: |
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Cant you call the RAC/AA??
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johnny
Moto Crosser
Joined: 13 Mar 2005
Posts: 435
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| Posted: Sat Dec 10, 2005 1:29 pm Post subject: |
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| Baloo wrote: | Looking outside at the clear dry weather, checking the bike over to discover a puncture in the rear tyre (the one that has only done 120 miles!) and the nearest tyre place shuts at 12.30 and I cannot get over there in time.
Now having to wait 'til next weekend to get it fixed / replaced! |
Cleaning the bike this morning and discovering a 1inch (bent) nail in the rear - that god for tubed tyres
(sorry baloo ) |
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Baloo
Guest
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| Posted: Sat Dec 10, 2005 2:38 pm Post subject: |
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| Tinks wrote: | | Cant you call the RAC/AA?? |
I was too stupid to think of that! I have just started my membership bill as well as a result of the Suzuki now being 12 mos old! |
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Baloo
Guest
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| Posted: Sat Dec 10, 2005 2:38 pm Post subject: |
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| johnny wrote: | | Baloo wrote: | Looking outside at the clear dry weather, checking the bike over to discover a puncture in the rear tyre (the one that has only done 120 miles!) and the nearest tyre place shuts at 12.30 and I cannot get over there in time.
Now having to wait 'til next weekend to get it fixed / replaced! |
Cleaning the bike this morning and discovering a 1inch (bent) nail in the rear - that god for tubed tyres
(sorry baloo ) |
Johnny, thanks m8 |
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Tinks
Fairy Grandmoderator
Joined: 08 Feb 2004
Posts: 19443
Location: Away with the fairys.
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| Posted: Sat Dec 10, 2005 2:57 pm Post subject: |
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| Baloo wrote: | | Tinks wrote: | | Cant you call the RAC/AA?? |
I was too stupid to think of that! I have just started my membership bill as well as a result of the Suzuki now being 12 mos old! |
No i would'nt say that........
come on your a man
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Happiness is a friction burn on your knee
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