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Ohms Law - Questions and Answers

Practice questions on Ohms Law.

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11. The unit of resistivity is
A. ohm-metre
B. mho-metre-1
C. mho-metre
D. ohm-metre-1
Explanation:
12. The resistance of a medal in terms of its volume v is
A. ρLv/A
B. ρL/Av
C. ρL2/v
D. ρv/ L2
Explanation:
13. A current of 2 A is passed through a conductor of resistance 10 Ω. The potential between the ends of the conductor is
A. 50 V
B. 20 V
C. 1/5 V
D. 2 V
Explanation:
14. When a potential difference of 12 V cause a current flow of 3 A in a conductor, what is the resistance of the conductor
A. 0.5 Ω
B. 2 Ω
C. 4 Ω
D. 6 Ω
Explanation:
15. The expression for specific resistance of a wire is
A. L/RA
B. RA/L
C. AL/R
D. R/AL
Explanation:
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