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

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

Question # 2

The SI unit of flux density is

Question # 3

The current is measured in

Question # 4

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 5

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

Question # 6

To convert galvanometer into ammeter we connect

Question # 7

The force acting on a charge moving in a magnetic field

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

When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is

Question # 10

Weber is a unit of

Question # 11

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

Question # 12

The pointer of a magnetic compass:

Question # 13

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 14

The magnetic field outside the solenoid due to current is

Question # 15

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

Question # 16

Avo-meter is used of measure the

Question # 17

The vector representation of force experience give the direction of

Question # 18

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

Question # 19

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

Question # 20

magnetic field is a:

Question # 21

The SI unit of magnetic flux is

Question # 22

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

Question # 23

A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is

Question # 24

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

Question # 25

Ammeter is used to measure

Question # 26

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

Question # 27

Tesla is the unit of

Question # 28

A voltmeter is used to measure the

Question # 29

Which is modified form of galvanometer

Question # 30

Amperean path is a:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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)
2 Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as
A. IT = 10-4 G
B. IT = 105G
C. IT = 103G
D. IT = 104G
3 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
A. F = B2
B. F = 0
C. F = B
D. F = B/2
4 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
5 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
6 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
7 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
8 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
9 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
10 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

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