Exams › NEET › Physics

If a charge is moved against the coulomb force of an electric field, then :

1. work is done by the electric field
2. energy is used from some outside source
3. the strength of the field is decreased
4. the energy of the system is decreased

Correct answer: energy is used from some outside source

Solution

When a charge is moved opposite to the Coulomb force, an external agent must do work on the charge. That work comes from outside the electric field, so the correct choice is that energy is used from some outside source.

Related NEET Physics questions

• Positive point charges are placed at the vertices of a star shape as shown in the figure. Direction of the electrostatic force on a negative point charge at the centre \( \boldsymbol{O} \) of the star is:
• is a property that resists the flow of electrons in a conductor.
• Electric switches and appliances should be tested only with
• Assertion At a point in space, the electric field points towards north. In the region, surrounding this point the rate of change of potential will be zero along the east and west Reason Electric field due to a charge is in the space around the charge
• Voltmeter is an instrument used to measure
• The lighting circuit is used for running:

⚔️ Practice NEET Physics free + battle 1v1 →