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The primary of a transformer when connected to a dc battery of 10 volt draws a current of 1mA. The number of turns of the primary and secondary windings are 50 and 100 respectively. The voltage in the secondary and the current drawn by the circuit in the secondary are respectively
Options
(a) 20 V and 0.5 mA
(b) 20 V and 2.0 mA
(c) 10 V and 0.5 mA
(d) zero and therefore no current
Correct Answer:
zero and therefore no current
Explanation:
A transformer is essentially an AC device. DC sources so no mutual induction between coils E₂ = 0 and I₂ = 0
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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 travelling along a straight line traversed one-third of the total distance
- The fundamental frequency of a closed organ pipe of length 20 cm is equal to the second
- The ratio of the acceleration for a solid sphere(mass m and radius R)rolling down
- A particle moves in xy plane according to the equation x = 4t² + 5t + 16 and y = 5t
- If the wavelength of light in vacuum be, the wavelength in a medium of refractive index
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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