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PHY 102 Test Compilation PHY 102 23 Objective Question
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Question

A certain resistor dissipates 0.5 W when connected to a 3 V potential difference. When connected to a 1 V potential difference, this resistor 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

P proportional to V2. Voltage drops to 1/3, so power drops to (1/3)2 = 1/9. P = 0.5/9 = 0.056 W.

Hint

P proportional to V2.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 23
Type: Objective
Difficulty: Not specified
Question 1398 of 1819
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