ECAT Pre Computer Science Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

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

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ECAT Physics Chapter 14 Electromagnetism

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Question # 1

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

Question # 2

The magnetic field inside a solenoid can be increased by:

Question # 3

The unit of flux density is also given by

Question # 4

The current sensitivity of the galvanometer is

Question # 5

Magnetic lines of force:

Question # 6

F = I(L x B) is a

Question # 7

The galvanometer can be made sensitive if the value of the factor C/BAN is

Question # 8

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

Question # 9

The CRO is used for displaying the waveform of a given

Question # 10

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 # 11

In a moving coil galvanometer, the deflecting couple depends upon

Question # 12

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

Question # 13

The SI unit of magnetic flux is.

Question # 14

The field around a moving charge is called

Question # 15

NmA-1 is commonly called:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A solenoid is a coil of wire which is:
A.

Short, loosely wound, cylindrical

B.

Long, tightly wound, spherical

C.

Long, loosely wound, cylindrical

D.

Long, tightly wound, cylindrical
2 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
3 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
4 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
5 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
6 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
7 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
8 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
9 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
10 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)

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