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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 body of mass 4 kg is accelerated upon by a constant force travels
- Radius of orbit of satellite of earth is R. Its kinetic energy is proportional to
- A Galilean telescope has an objective of focal length 100 cm and magnifying power 50
- The rest mass of a body is m1. It moves with a velocity of 0.6c, then its relativistic
- The magnetic field at a point on the axis of a long solenoid having 5 turns per cm
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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