| ⇦ | 
| ⇨ |
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
Related Questions: - A charged particle of mass m and charge q moves along a circular path of radius
- A coil has resistance 30 ohm and inductive reactance 20 ohmn at 50 Hz frequency.
- At absolute temperature, the kinetic energy of the molecules
- Two spherical conductors A and B of radii 1 mm and 2 mm are separated by a distance
- A 220 volt and 1000 watt bulb is connected across a 110 volt mains supply.
Topics: Alternating Current
(96)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A charged particle of mass m and charge q moves along a circular path of radius
- A coil has resistance 30 ohm and inductive reactance 20 ohmn at 50 Hz frequency.
- At absolute temperature, the kinetic energy of the molecules
- Two spherical conductors A and B of radii 1 mm and 2 mm are separated by a distance
- A 220 volt and 1000 watt bulb is connected across a 110 volt mains supply.
Topics: Alternating Current (96)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply