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JAMB Physics 1989 Question 32

Question 32

Electrostatics

Two insulated charged spheres of different sizes and carrying opposite charges are connected together by a metallic conductor. Current will flow from one sphere to the other until both spheres

  1. A.carry the same magnitude and sign of charge
  2. B.are at the same potential
  3. C.are at the same temperature
  4. D.are of the same size.
Show the answer and explanation

Answer: B (are at the same potential)

Explanation

Charge flows from high to low potential and stops when the two spheres are at the same potential.