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Reviewed CSCA Physics question · Easy

At a certain point, the electric field strength is 200 N/C. What is the magnitude of the force on a charge of 0.5 C placed at that point?

  1. 50 N
  2. 100 N
  3. 200 N
  4. 400 N
Show the answer and explanation

Correct answer

B. 100 N

Principle or equation

Electric field strength E = F/q, so F = E q.

Why this answer is correct

F = 200 N/C * 0.5 C = 100 N.

Example

If E = 100 N/C and q = 2 C, then F = 200 N.

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