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

Magnetic induction is also called as:

Question # 2

The SI unit of flux density is

Question # 3

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 4

A resistance used in voltmeter is called

Question # 5

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 6

CRO deflects the beam of

Question # 7

F = I(L x B) is a

Question # 8

The SI unit of magnetic permeability is

Question # 9

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

Question # 10

The magnetic field in the middle of a solenoid due to current is

Question # 11

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

Question # 12

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

Question # 13

The working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 14

Magnetic lines of force:

Question # 15

In a moving coil galvanometer, the deflecting couple depends upon

Question # 16

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

Question # 17

The permeability of free space is measured in:

Question # 18

The current sensitivity of the galvanometer is

Question # 19

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

Question # 20

The magnetic field outside the solenoid due to current is

Question # 21

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 22

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

Question # 23

A charged particle moving at right angle to the magnetic field will experience

Question # 24

Galvanometer is a device used for the detection of

Question # 25

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

Question # 26

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

Question # 27

Resistance is measured in

Question # 28

A field is uniform and much stronger:

Question # 29

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

Question # 30

Ammeter is used to measure

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
2 The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
A. Heating effect of current
B. Chemical effect of current
C. Magnetic effect of current
D. Electromagnetic effect of current
3 The force experienced by an electron projected in a magnetic field B with a velocity V is given by
A. F=e(V x B)
B. F= -e(V x B)
C. F= e(B x V)
D. Both a and c
4 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge
5 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
6 Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:
A.

Thumb

B.

Curled fingers

C.

Middle finger

D.

Arm of right hand
7 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
8 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
9 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
10 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these

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