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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
- Two resistances 3Ω and 6Ω are connected in parallel
- Two charged particles have charges and masses in the ratio 2:3 and 1:4 respectively.
- A wheel has angular acceleration of 3.0 rad/sec² and an initial angular speed of 2.00
- The input signal given to a CE amplifier having a voltage gain of 150 is
- Before using the tangent galvanometer, its coil is set in
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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