What is the force between 2C and 1C separated by a distance 1m in air?

3. Find the force between 2C and -1C separated by a distance 1m in air(in newton).a) 18 X 106b) -18 X 106c) 18 X 10-6d) -18 X 10-6Answer: bExplanation: F = q1q2/(4∏εor2) = -2 X 9/(10-9X 12) = -18 X 109.4. Two charges 1C and -4C exists in air. What is the direction of force?

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