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If the force exerted by an electric dipole on a charge q at a distance of 1 m is F, the force at a point 2 m away in the same direction will be
Options
(a) F/2
(b) F/4
(c) F/6
(d) F/8
Correct Answer:
F/8
Explanation:
Field of a dipole at a distance d along the axis or perpendicular to the axis is inversely proportional to r³. That is F/8 is the force at the given point, 2 m away if F is the force at 1 m, on the same charge q.
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Small drops of the same size are charges to V volt each. If n such drops coalesce
- A plumb line is suspended form a ceiling of a car moving with horizontal acceleration
- A potentiometer circuit has been set up for finding the internal resistance of a given
- Two charges of equal magnitude q are placed in air at a distance 2a
- A pure semiconductor behaves slightly as a conductor at
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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