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A spherical drop of mercury having a potential of 2.5 v is obtained as a result of merging 125 droplets. The potential of the constituent droplets would be
Options
(a) 1.0 V
(b) 0.5 V
(c) 0.2 v
(d) 0.1 V
Correct Answer:
0.1 V
Explanation:
V = n²/³.v = (125)²/³.v = 5².v
2.5 = 2.5 v or v = 0.1 V
Related Questions: - An electric motor runs on DC source of emf 200 V and draws a current of 10 A.
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Topics: Electrostatics
(146)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An electric motor runs on DC source of emf 200 V and draws a current of 10 A.
- A transformer is used to light a 100 W and 110 V lamp from a 220 V mains.
- Maximum kinetic energy of electrons emitted in photoelectric effect increases when
- The de-Broglie wavelength of an electron in the first Bohr orbit is
- A body of mass 0.25 kg is projected with muzzle velocity 100 m/s from a tank
Topics: Electrostatics (146)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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