Qualification > Sciences
ALL PHYSICS DOUBTS - POST HERE !!
Baladya:
--- Quote from: Ari Ben Canaan on May 25, 2010, 04:00:14 pm ---Why is it D and NOT B
--- End quote ---
Ya i was going to say that, B is right, but D is more of the right answer :P
guMnam:
okay....if we place a resistor in a circuit ...does the curent decrease...or does the p.d decrease ???
Ivo:
Can someone please explain the V=I^2R formula, and how this relates to heat loss in electric cables. This is mainly for Paper 3, many thanks in advance.
Ivo:
--- Quote from: guMnam on May 25, 2010, 04:02:56 pm ---okay....if we place a resistor in a circuit ...does the curent decrease...or does the p.d decrease ???
--- End quote ---
It depends if the circuit is series or parallel.
holtadit:
--- Quote from: Ivo on May 25, 2010, 04:03:41 pm ---Can someone please explain the V=I^2R formula, and how this relates to heat loss in electric cables. This is mainly for Paper 3, many thanks in advance.
--- End quote ---
Firstly, its P=I2R
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