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JAMB Physics 1978 Question 38

Question 38

Electrostatics

An electric charge could be transmitted through

  1. A.wood, rubber and stone
  2. B.paper, clay and plastic
  3. C.glass, acid and cloth
  4. D.the human body, water and metals
  5. E.all of the above.
Show the answer and explanation

Answer: D (the human body, water and metals)

Explanation

Charge flows through conductors. The human body, (impure) water and metals all conduct; wood, rubber, plastic, glass and cloth are insulators.