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

Magnetic lines of force:

Question # 2

The torque per unit twist of coil is called

Question # 3

The force experienced by charged particle is maximum, if it moves

Question # 4

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 5

The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of

Question # 6

In a straight current carrying conductor, the direction of magnetic field can be found by

Question # 7

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

Question # 8

When some compass needles are placed on a card board along a circle with the center at the wire, they will

Question # 9

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

Question # 10

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Question # 11

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 12

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 13

A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is

Question # 14

Galvanometer is a device used for the detection of

Question # 15

The sources of magnetic field are

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
2 The gavanometer constant of a moving coil galvanometer is given by
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
3 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
4 The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of
A. ammeter
B. voltmeter
C. galvanometer
D. avo-meter
5 When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
A. Voltmeter
B. Avometer
C. Ammeter
D. None of these
6 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
7 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
8 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
9 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
10 The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by
A. F=eVB
B. F=e2V/B
C. F=e/VB
D. F=B2/ev

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