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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
- Two identical charges repel each other with a force equal to 10 mgwt they are 0.6 m
- The depletion layer in the p-n junction region is caused by
- A particle is dropped vertically from rest, from a height.The time taken by it to fall
- One-fourth length of a spring of force constant K is cut away. The force constant
- The photoelectric threshold wevelength for potassium (work function being 2 eV) is
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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