Question Detail

PHY 102 Test Compilation PHY 102 1 Objective Question
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Question

transformer which is 80% efficient gives an output of 12V and 4A. What is the input power?
Options
A 13W
B 38W
C 60W
Correct Answer
D 154W
Correct Answer

Option C is the correct answer.

Detailed Explanation

Output power = V×I = 12×4 = 48 W. Efficiency = P_out / P_in → 0.8 = 48 / P_in → P_in = 48/0.8 = 60 W.

Hint

Efficiency = P_out / P_in.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 1
Type: Objective
Difficulty: Not specified
Question 225 of 1819
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