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Capacitors and Conservation of Energy

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In a parallel plate capacitor, the electric field on the left side and, on the right side of the plates is:
a) 4Ï?kQ/A
b) -4Ï?kQ/A
c) zero
d) NA

2) Two balls of mass m = 1 kg each and carrying charges Q = 1C each are fixed at a distance r = 1m from each other as shown. Find the final velocity of the ball (1) after it is released from rest, hint: conservation of energy

a) 100 km/s
b) 184 km/s
c) 134 km/s
d) NA

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This solution contains step-by-step calculations to determine the electric field and final velocity of the ball.

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