а. Four point charges are located at the corners of a square as shown in FIGURE Q1a. The side of the square is within the range of 3 cm to 8 cm. The charge values of Q3 and Q4 are unknown. +5μC - 6µC Q, (+ Q2 Q4 FIGURE Q1a i. Propose the charge values of Q3 and Q4 so that the net electric force on Q2 is directed above positive x-axis. ii. Determine the work done to bring the charge Q2 from its location to a point at infinity. Assume only electric force is present in the system.

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Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.