Which expression correctly relates the current

PHYSICS · Single correct · A Level · Physics · Electricity · Electricity

Problem

Which expression correctly relates the current

I

, potential difference

\Delta V

, and resistance

R

for a conductor that obeys Ohm’s law? (a)

\Delta V = \dfrac{I}{R}

(b)

I = \dfrac{\Delta V}{R}

(c)

R = \dfrac{I}{\Delta V}

(d)

\Delta V = IR^{2}

Related theory

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