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

Strength of magnetic field is measured in SI units, in:

Question # 2

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

Question # 3

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

Question # 4

Ammeter is used to measure

Question # 5

A beam of electrons is provided by an

Question # 6

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

Question # 7

Which one of the following relations is correct?

Question # 8

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

Question # 9

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

Question # 10

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 # 11

For the conversion of galvanometer into voltmeter, we connect a

Question # 12

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

Question # 13

A solenoid is a coil of wire which is:

Question # 14

A field is uniform and much stronger:

Question # 15

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

Question # 16

Method "lamp and scale arrangement" used to measure the

Question # 17

NmA-1 is commonly called:

Question # 18

Current is measured in

Question # 19

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

Question # 20

The vector representation of force experience give the direction of

Question # 21

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

Question # 22

The SI unit of magnetic flux is

Question # 23

F = I(L x B) is a

Question # 24

The current sensitivity of the galvanometer is

Question # 25

Electron gun consist of

Question # 26

Magnetic lines of force:

Question # 27

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

Question # 28

When current passes through a solenoid coil, it behaves like a

Question # 29

At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2

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

Circular and endless

B.

Oval in shape and endless

C.

Straight

D.

Parabolic
3 The force acting on a charge moving in a magnetic field
A. is perpendicular to the both magnetic field and direction of motion
B. is proportional to the magnetic of charges
C. vanishes when the motion is directly opposite to the direction of field
D. all of the above
4 To convert galvanometer into ammeter we connect
A. small resistance in parallel with galvanometer
B. small resistance in series with galvanometer
C. high resistance in series with galvanometer
D. high resistance in parallel with galvanometer
5 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
6 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
7 The working of galvanometer depends upon torque exerted on a current carrying coil in
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field
8

Amperean path is a:
A.

Closed path

B.

Rectangular path

C.

Circular path

D.

Any of above
9 Total number of turns on 0.15 m length solenoid is 300. the value of n is:
A. Greater than 300
B. Smaller than 300
C. Equal to 300
D. Any of (A) or (B)
10 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density

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