engineering physics MCQ #1222

A coil of inductance 1 H and resistance 10 ohm is connected to a 10 V battery. Energy stored in the coil is

engineering physics MCQ #1222

  1. Question 1

    Q1. A coil of inductance 1 H and resistance 10 ohm is connected to a 10 V battery. Energy stored in the coil is

    • A) 0.1 J
    • B) 0.5 J
    • C) 1 J
    • D) 5 J

    Answer: 0.5 J

    Explanation: Energy stored = 1/2 * LI² = 1/2 * 1 * (10/10)² = 0.5 J.