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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
- An object is attached to the bottom of a light vertical spring and set vibrating.
- Which one of the following electrical meter has the smallest resistance?
- When temperature of an ideal gas is increased from 27⁰C to 227⁰C,
- Magnetic induction produced at the centre of a circular loop carrying current is B.
- The self-inductance of a choke coil is 10 mH. When it is connected with a 10 V DC source,
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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