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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
- A block of mass m is moving on a wedge with the acceleration aᵒ
- When photons of energy hν fall on an aluminium plate (of work function E₀),
- A body, which emits radiations of all possible wavelengths, is known as
- The earth is assumed to be a sphere of radius R. A platform is arranged at a height R
- A particle moves a distance x in time t according to equation x = (t + 5)⁻¹
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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