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

A current carrying conductor sets up its own:

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

Magnetic lines of force:

Question # 6

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

Question # 7

The gavanometer constant of a moving coil galvanometer is given by

Question # 8

How many number of anodes used in electron gun

Question # 9

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

Question # 10

The sources of magnetic field are

Question # 11

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

Question # 12

The angle of deflection of coil can be measured by the

Question # 13

For the conversion of galvanometer into voltmeter, we connect a

Question # 14

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

Question # 15

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
2 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
3 The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by
A. F=eVB
B. F=e2V/B
C. F=e/VB
D. F=B2/ev
4

The pointer of a magnetic compass:
A.

Is affected only by permanent magnets

B.

Align itself parallel to the applied magnetic field

C.

Vibrates in the magnetic field of the current

D.

Aligns itself perpendicular to the magnetic field
5 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
6 When some compass needles are placed on a card board along a circle with the center at the wire, they will
A.

Point the direction of N-S

B.

Set themselves tangential to the circle

C.

Point in the direction of E-W

D.

None of these
7 The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the
A. magnetic flux
B. magnetic induction
C. magnetic field
D. self inductance
8 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
9 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
10 When the charged particle is projected at right angles to the field, then experienced by it will be:
A. Maximum
B. Zero
C. qvB
D. Both (A) and (B)

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