State PCS PYQPrelims 2024

BPSC – Combined Competitive Examination · Question 104

Which of the following gives the resistance of a wire?

  1. R = IV
  2. R = I/2V
  3. R = V/I
  4. R = I/V
Show answer & explanation

Answer: (C) R = V/I

Explanation

By Ohm's law V = IR, so R = V/I.

  • (A) Incorrect

    Wrong: IV is power, not resistance.

  • (B) Incorrect

    Wrong: not a valid relation.

  • (C) Correct

    Correct: Ohm's law: R = V/I.

  • (D) Incorrect

    Wrong: I/V is conductance.