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PHY 102 Test Compilation PHY 102 20 Objective Question
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Question

How far apart are two charges, one of magnitude 3 uC and the other 5 uC, if the force between them is 20 N?
Options
A 0.082 m
Correct Answer
B 82 m
C 0.82 m
D 8.2 m
Correct Answer

Option A is the correct answer.

Detailed Explanation

r = sqrt(k q1 q2 / F) = sqrt[(9x109)(3x10-6)(5x10-6)/20] = sqrt[(9x109)(1.5x10-11)/20] = sqrt[0.135/20] = sqrt(0.00675) = 0.0822 m.

Hint

r = sqrt(k q1 q2 / F) = sqrt[(9x109)(3x10-6)(5x10-6)/20] = sqrt[(9x109)(1.5x10-11)/20] = sqrt[0.135/20] = sqrt(0.00675) = 0.0822 m.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 20
Type: Objective
Difficulty: Not specified
Question 1244 of 1819
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