Question Detail

PHY 102 Test Compilation PHY 102 8 Objective Question

Question

A certain resistor dissipates 0.5 W when connected to 3 V. When connected to 1 V, it will dissipate:
Options
A 0.5 W
B 0.167 W
C 1.5 W
D 0.056 W
Correct Answer
Correct Answer

Option D is the correct answer.

Detailed Explanation

R = V²/P = 9/0.5 = 18 Ω. P = V²/R = 1/18 = 0.0556 W ≈ 0.056 W.

Hint

P = V²/R.

Question Info