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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 body is hangfing from a rigid support by an inextensible string of length
- The time period of a simple pendulum in a lift descending with constant acceleration g is
- A galvanometer of 50 Ω resistance has 25 divisions. A current of 4×10⁻⁴ A gives
- In a pure capacitive A.C circuit, current and voltage differ in phase by
- A ball is dropped into a well in which the water level is at a depth h below the top
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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