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The net electric force on a charge of +3μC at the mid-point on the line joining two charges of magnitude +2μC and -2μC seperated by the same distance of 6mm, is
Options
(a) 6000N
(b) 500N
(c) 60N
(d) zero
Correct Answer:
zero
Explanation:
From Coulomb’s law, force due to same charge is repulsive and that due to opposite is attractive.
F = K [(2×3/3²) – (2×3/3²)] = 0
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A wire of a certain material is stretched slowly by ten percent. Its new resistance
- When npn transistor is used as an amplifier
- A parallel plate air capacitor has capacity C, distance of seperation between plate
- A dip needle vibrates in a vertical plane perpendicular to magnetic meridian. The time
- For a thermocouple, the neutral temperature is 270⁰C when its cold junction is at 20⁰C.
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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