13. When a single charge q is placed on one corner of a square, the electric...

13. When a single charge q is placed on one corner of a square, the electric field at the center of the square is F/q. If three other equal charges are placed on the other corners, the electric field at the center of the square due to these four equal charges is

A) F/(2q). B) F/(4q). C) 4F/q. D) F/q. E) None of the choices are correct.

14. Lightning (a flow of electrons between the ground and a thundercloud) lasts about 120µs. The rate of charge flow in a typical lightning bolt is about 25,000 coulombs per second.

A) How much total charge flows between the ground and the cloud during a typical lightning bolt?

B) How many electrons flow during this time?

Expert Solution

genius_generous answered 1 year ago

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