ECAT Pre Engineering Physics Chapter 14 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Question # 1

To convert galvanometer into ammeter we connect

Question # 2

The torque per unit twist of coil is called

Question # 3

The force acting on a charge moving in a magnetic field

Question # 4

How many number of anodes used in electron gun

Question # 5

Strength of magnetic field is measured in SI units, in:

Question # 6

It is customary represent a current flowing towards the reader by a symbol

Question # 7

A beam of electrons is provided by an

Question # 8

The vector representation of force experience give the direction of

Question # 9

The SI unit of magnetic flux is.

Question # 10

The CRO deflects the beam of electrons, when they passes through uniform

Question # 11

A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called

Question # 12

A shunt resistance parallel to the galvanometer is used to convert it into

Question # 13

A relationship between Gauses of magnetic induction and Tesla(T) is given by

Question # 14

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 15

The permeability of free space is measured in:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
2 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
3 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
4 The working of galvanometer depends upon torque exerted on a current carrying coil in
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field
5 For the conversion of galvanometer into voltmeter, we connect a
A. small resistance in series with galvanometer
B. small resistance in parallel with galvanometer
C. high resistance in parallel with galvanometer
D. high resistance series with galvanometer
6 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area
7 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
8 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
9 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these
10 The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by
A. F=IB/L
B. F= L x B/I
C. F = IL x B
D. F = IL . B

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