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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 of mass m is placed on the earth’s surface. It is taken from the earth’s surface
- In old age arteries carrying blood in the human body become narrow resulting
- Core of electromagnets are made of ferromagnetic material which has
- The minimum velocity (in ms⁻¹) with which a car driver must traverse a flat curve
- In a common emitter transistor amplifier, the voltage gain is
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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