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PHY 102 Test Compilation PHY 102 21 Objective Question
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Question

One charge of 2 C is 1.5 m away from 3 C. What is the force they exert on each other?
Options
A 0.25 N
B 2.4 x 1010 N
Correct Answer
C 7.3 x 1010 N
D 5.4 x 100 N
Correct Answer

Option B is the correct answer.

Detailed Explanation

F = kq1q2/r2 = (9x109)(2)(3)/(1.5)2 = (9x109)(6)/(2.25) = (5.4x1010)/(2.25) = 2.4x1010 N. (These are enormous, unrealistic charges for a textbook example - but the arithmetic itself is straightforward Coulomb's law.)

Hint

F = kq1q2/r2 = (9x109)(2)(3)/(1.5)2 = (9x109)(6)/(2.25) = (5.4x1010)/(2.25) = 2.4x1010 N.

Question Info

Course: PHY 102
Topic: Test Compilation PHY 102 21
Type: Objective
Difficulty: Not specified
Question 1325 of 1819
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