The Success Center Mithi

An ohmic resistor of 5 Ω carries 4 A. What is the voltage across it?

A) 30 V

B) 20 V

C) 10 V

D) 40 V

Answer: B

Explanation: Use Ohm's law V = IR for the stated idealized conditions. Substitution gives 4 × 5 = 20 V.

Scroll to Top