ECAT Pre General Science Physics Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

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

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ECAT Pre General Science Physics Chapter 14 Electromagnetism

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Question # 1

The SI unit of flux density is

Question # 2

A field is uniform and much stronger:

Question # 3

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

Question # 4

The sources of magnetic field are

Question # 5

The force acting on a charge moving in a magnetic field

Question # 6

The CRO is used for displaying the waveform of a given

Question # 7

The strength of magnetic field around the current conductor is

Question # 8

Resistance is measured in

Question # 9

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 # 10

Magnetic lines of force:

Question # 11

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

Question # 12

Weber is a unit of

Question # 13

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

Question # 14

Method "lamp and scale arrangement" used to measure the

Question # 15

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 16

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 17

Which is modified form of galvanometer

Question # 18

In the region surrounding a current carrying wire:

Question # 19

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

Question # 20

Electron gun consist of

Question # 21

The pointer of a magnetic compass:

Question # 22

A long wire wound tightly on a cylindrical core is called:

Question # 23

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 # 24

Current is measured in

Question # 25

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 26

If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:

Question # 27

The current sensitivity of the galvanometer is

Question # 28

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

Question # 29

The most suitable material for permanent magnet is

Question # 30

A resistance used in galvanometer to make it voltmeter is called

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
2 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
3 When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be
A. changed
B. zero
C. unchanged
D. none of these
4 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
5 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2
6 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
7 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
8 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
9 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
10 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber

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