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The self-inductance of a choke coil is 10 mH. When it is connected with a 10 V DC source, then the loss of power is 20 W. When its is connected with 10 V AC source loss of power is 10 W. The frequency of AC source will be
Options
(a) 80 Hz
(b) 100 Hz
(c) 120 Hz
(d) 220 Hz
Correct Answer:
80 Hz
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A ball rolls off the top of stair way with a horizontal velocity of magnitude 1.8 m/s
- To observed diffraction, the size of the obstacle
- An a.c. supply gives 30 volt r.m.s which passes through a 10Ω resistance.
- The molecular weight of a gas is 44. The volume occupied by 2.2 g of this gas
- On the horizontal surface of a truck a block of mass 1 kg is placed (µ=0.6) and truck
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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