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Physics
Physics
Problem
Which of the following correctly gives the relation among potential difference (
V
V
V
), current (
I
I
I
) and resistance (
R
R
R
) for a metallic conductor at constant temperature? a)
V
=
2
I
R
V = 2 I R
V
=
2
I
R
b)
V
=
I
R
V = I R
V
=
I
R
c)
V
=
I
2
R
V = I^{2} R
V
=
I
2
R
d)
R
=
V
I
R = V I
R
=
V
I
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