A resistor carries a current of 2 A when a potential difference of 10 V is applied across it. Its resistance is:
A0.2 Ω
B12 Ω
C5 Ω
D20 Ω
Answer & Solution
Correct answer: C. 5 Ω
By Ohm's law R = V/I = 10/2 = 5 Ω.
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