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

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

Question # 2

magnetic field is a:

Question # 3

The strength of magnetic field around the current conductor is

Question # 4

A resistance used in galvanometer to make it voltmeter is called

Question # 5

In the formula B= µ̻ nl, the symbol n denotes:

Question # 6

When the charged particle is projected at right angles to the field, then experienced by it will be:

Question # 7

The voltage increases linearly with

Question # 8

The current is measured in

Question # 9

Galvanometer is a device used for the detection of

Question # 10

Magnetic induction is also called as:

Question # 11

The magnetic field inside a solenoid can be increased by:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

NmA-1 is commonly called:

Question # 17

Lorentz force is defined as

Question # 18

Flurescent screen is a screen where visible spot

Question # 19

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

Question # 20

In the region surrounding a current carrying wire:

Question # 21

if the field is directed along the normal to the area, then flux is:

Question # 22

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

Question # 23

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Question # 24

Resistance is measured in

Question # 25

Which one of the following relations is correct?

Question # 26

When some compass needles are placed on a card board along a circle with the center at the wire, they will

Question # 27

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

Question # 28

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

Question # 29

The most suitable material for permanent magnet is

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
3 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
4 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
5 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
6 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
7 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)
8 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
9 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
10 It is customary represent a current flowing towards the reader by a symbol
A. (x)
B. (+)
C. (.)
D. (-)

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