A charge of 1.0 x 10-5 Coulombs experience force of 40N at a certain point…

Physics WAEC 1990

A charge of 1.0 x 10-5 Coulombs experience force of 40N at a certain point in space. What is the electric field intensity?

  • 8.00 x 106NC-1
  • 4.00 x 106NC-1 checkmark
  • 4.00 x 10-4NC-1
  • 2.00 x 10-4NC-1
  • 2.50 x 10-1NC-1

The correct answer is: B

Explanation

F = qE; E = F/q = 40/(1.0 x 10-5) = 4.0 x 106
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