MDCAT Physics MCQ #455

A 6V battery is connected to a 3 ohm resistor. What is the energy dissipated in 2 seconds?

MDCAT Physics MCQ #455

  1. Question 1

    Q1. A 6V battery is connected to a 3 ohm resistor. What is the energy dissipated in 2 seconds?

    • A) 12 J
    • B) 24 J
    • C) 6 J
    • D) 8 J

    Answer: 24 J

    Explanation: First, find the current I = V/R = 6/3 = 2 A. Then, using the formula E = I^2Rt, we get E = 2^2 * 3 * 2 = 24 J. Option A is incorrect because it underestimates the energy.