Question

When a charged oil drop moves upwards in an electric field of strength $E$, the electric force acting on the drop is :

• A. equal to the gravitational force
• B. less than the gravitational force
• C. greater than the gravitational force
• D. greater than the mass of the oil drop

Answer 1

Answer: (C)

When a charged oil drop moves upwards in an electric field of strength $E$, the upward force on charged oil drop due to electric field is greater than gravitational force.