ECAT Pre Computer Science Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

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

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ECAT Physics Chapter 14 Electromagnetism

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Question # 1

The galvanometer can be made sensitive if the value of the factor C/BAN is

Question # 2

The CRO is used for displaying the waveform of a given

Question # 3

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 4

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

Question # 5

In the expression of force experienced by electron, the direction of both v and B are

Question # 6

A voltmeter is used to measure the

Question # 7

The direction of lines of force depends upon the direction of

Question # 8

The voltage increases linearly with

Question # 9

The SI unit of magnetic flux is.

Question # 10

A field is uniform and much stronger:

Question # 11

How many number of anodes used in electron gun

Question # 12

Magnetic flux and flux density are related by

Question # 13

If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is

Question # 14

The field around a moving charge is called

Question # 15

Method "lamp and scale arrangement" used to measure the

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
2 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
3 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these
4 When some compass needles are placed on a card board along a circle with the center at the wire, they will
A.

Point the direction of N-S

B.

Set themselves tangential to the circle

C.

Point in the direction of E-W

D.

None of these
5 Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
A. Maximum
B. Minimum
C. Zero
D. Very small
6 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
7 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
8 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)
9 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge
10 In a moving coil galvanometer, the deflecting couple depends upon
A. area of the coil
B. number of turns of coil
C. value of magnetic field
D. all of the above

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