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

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

Question # 2

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

Question # 3

Centripetal force for electron is given by

Question # 4

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

Question # 5

A resistance used in galvanometer to make it voltmeter is called

Question # 6

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

Question # 7

A field is uniform and much stronger:

Question # 8

The unit of flux density is also given by

Question # 9

The magnetic field inside a solenoid can be increased by:

Question # 10

Magnetic induction is also called as:

Question # 11

The SI unit of flux density is

Question # 12

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

Question # 13

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 14

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

Question # 15

magnetic field is a:

Question # 16

When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into

Question # 17

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

Question # 18

Galvanometer is a device used for the detection of

Question # 19

Magnetic lines of force:

Question # 20

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

Question # 21

Current is measured in

Question # 22

The force acting on a charge moving in a magnetic field

Question # 23

In a moving coil galvanometer, the deflecting couple depends upon

Question # 24

The e/m of an electron moving in a circular path in a magnetic field is equal to

Question # 25

To convert galvanometer into ammeter we connect

Question # 26

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

Question # 27

The SI unit of magnetic induction is

Question # 28

The vector representation of force experience give the direction of

Question # 29

The current sensitivity of the galvanometer is

Question # 30

Which is modified form of galvanometer

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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 When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
A. 90°
B. 75°
C. 0°
D. 180°
3 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
4 In order to make a voltmeter, high resistance is connected with galvanometer, in
A. perpendicular
B. may be paralled or pendicular
C. series
D. none of these
5 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
6 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
7 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
8 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
9 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
10 In the expression of force experienced by electron, the direction of both v and B are
A. parallel
B. zero
C. perpendicular
D. none of them

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