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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
- When a string is divided into three segments of length l₁, l₂ and l₃ the fundamental
- Light of two different frequencies whose photons have energies 1eV
- A person cannot see the objects clearly placed at a distance more than 40 cm
- An electron of mass m and a photon have same energy E. The ratio of de-Broglie
- A beam of light of wavelength 590 nm is focussed by a converging lens of diameter
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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