Problem2: Arrange electrically charged particles as shown below with d= 39.0 cm and the charge of each particle will be a number of times the charge 91 = 3.40 PC and q2 = 6.00 PC when the electric potential is set to be equal to zero at infinity. Calculate the following values. • (a) What is the net electric potential at the center (point P) of the rectangle? • (b) To transfer a charge of 43 = -3.40 pC from infinity to point P, how much work must we do? Explain the meaning of the calculated answer value (find the answer value from the change in electric potential energy AU) +291 d -91 ·d- -d. +492 + P +492 d d -3q1 d +291

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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.