Which one of the following physical quantities does not affect the resistance of a cylindrical resistor?
A. The current through it
B. Its length
C. The resistivity of the material used in the resistor
D. The area of cross-section of the cylinder
Answer: Option A
Related Questions on Electricity and Magnetism
What will be the total resistance of the three 20-Ω coils connected in series?
A. 40 Ω
B. 20 Ω
C. 60 Ω
D. 800 Ω
Superconductors are substances which
A. conduct electricity at lower temperature
B. offer high resistance to the flow of current
C. offer not resistance to the flow of current
D. conduct electricity at high temperature

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