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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 of mass m slides down an incline and reaches the bottom
- When you move from equator to pole, the value of acceleration due to gravity (g)
- When a spring is extended by 2 cm energy stored is 100 J. When extended further by 2 cm
- The electric field in a certain region is acting radially outward and is given by E=Ar.
- If A=3i+4j and B=7i+24j the vector having the same magnitude as B and parallel to A is
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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