Class 10 Physics MCQs - Chapter 4

Electromagnetism Quiz Questions & Answers PDF Download - 7

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The Quiz: When a current passes through a conductor, it produces a magnetic field around it. This is discovered by; "Electromagnetism" App (iOS, Android) with answers: ampere, faraday, fleming, and johns burge to study online school courses. Study Magnetic Effects of Steady Current MCQ Questions, download Amazon eBook (Free Sample) for distance learning.

Electromagnetism Exam Questions and Answers PDF Download: Test 7

MCQ: 31

When a current passes through a conductor, it produces a magnetic field around it. This is discovered by

Faraday
Ampere
Fleming
Johns Burge

MCQ: 32

The electric power delivered to the secondary circuit is equal to the power supplied to the primary circuit in a/an

ideal transformer
step-down transformer
step-up transformer
negative transformer

MCQ: 33

Change in no. of magnetic field lines induces

current in coil
Electromotive force (EMF) in the coil
frequency in coil
all of above

MCQ: 34

A step-up transform has a turns ratio of 1: 200. An alternating supply of 15 V is connected across the primary coil. The secondary voltage should be

3000 volts
1500 volts
1000 volts
2000 volts

MCQ: 35

The current-carrying loop inside the magnetic field rotate due to the

current acting on the coil
torque acting on the coil
couple acting on the coil
light acting on the coil

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