Question Detail

PHY 102 Test Compilation PHY 102 27 Objective Question
Take CBT

Question

By how many percent is the torque of a motor decreased if its permanent magnets lose 5.0% of their strength?
Options
A 0.05%
B 0.50%
C 5.0%
Correct Answer
D 0.55%
Correct Answer

Option C is the correct answer.

Detailed Explanation

Torque proportional to B; 5% drop in B gives 5% drop in torque.

Hint

Torque proportional to B; 5% drop in B gives 5% drop in torque.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 27
Type: Objective
Difficulty: Not specified
Question 1581 of 1819
Previous Course Details Next