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1. What will be the electric potential at the center of the square?
a. Zero
d. 4v2k qr
2. What will be the electric potential at the center of the square if two charges at the top are
replaced with negative charges?
a. Zero
b.4k qr
c. 82k qr d. 442k qr
3. If the distance between two charges is quadrupled, how would the electric potential energy
change?
a doubled b. halved c. quadrupled
d. quartered For Nos. 4-8 refer to the diagram at
the right
4. What is the direction of the electric field at point B?
a. upward
c. right
b. downward d. left​