Question Detail

PHY 102 Test Compilation PHY 102 20 Objective Question

Question

Determine the value of two equal charges if they repel each other with a force of 0.1 N when placed 50 cm apart in a vacuum.
Options
A 1.7 x 10-6 C
Correct Answer
B 0 C
C -1.7 x 10-6 C
D 3.4 x 10-6 C
Correct Answer

Option A is the correct answer.

Detailed Explanation

Same working as Q8: q = sqrt(F r2/k) = sqrt[(0.1)(0.5)2/9x109] = 1.7x10-6 C. Since the charges REPEL, they are like charges (both positive, taken as +1.7x10-6 C).

Hint

Same working as Q8: q = sqrt(F r2/k) = sqrt[(0.1)(0.5)2/9x109] = 1.7x10-6 C.

Question Info