A charge Q2 = 8.854 × 10-9 C is located in a vacuum at P2 (2, 3, 1). The force on Q2 due to a charge Q1 = 4π × 10-3 C at P1 (2, 2, 1) is:
(Note : All the coordinates are measured in Meters. ax, ay and az are unit vectors in X, Y and Z direction respectively.)
A. ay N
B. -ay N
C. 4ax + 5ay + 2az N
D. -4ax - 5ay - 2az N
Answer: Option A
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