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A force of 10N is applied on a body for 3 sec and the corresponding displacement 6 m. The power of the source is
Options
(a) 20 W
(b) 25 W
(c) 40 W
(d) 50 W
Correct Answer:
20 W
Explanation:
Velocity, v = displacement / time = 6/3 = 2 m/s
.·. Power, P = Fv = 10 × 2 = 20 W
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Topics: Work Energy and Power
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An electric dipole of length 1 cm is placed with the axis making an angle of 30⁰
- If the band gap between valence band and conduction band in a material is 5.0 eV,
- Kepler’s third law states that square of period of revolution (T) of a planet
- If 75% of the radioactive reaction is completed in 2 hrs, what would be
- When current I is flowing through a conductor, the drift velocity is v.
Topics: Work Energy and Power (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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