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

The SI unit of magnetic flux is

Question # 2

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

Question # 3

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

Question # 4

The pointer of a magnetic compass:

Question # 5

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 # 6

A galvanometer is an instrument used to

Question # 7

The unit of flux density is also given by

Question # 8

The CRO is used for displaying the waveform of a given

Question # 9

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

Question # 10

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

Question # 11

NmA-1 is commonly called:

Question # 12

Galvanometer is a device used for the detection of

Question # 13

In the expression of force experienced by electron, the direction of both v and B are

Question # 14

Ammeter is used to measure

Question # 15

Avo-meter is used of measure the

Question # 16

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

Question # 17

CRO deflects the beam of

Question # 18

Resistance is measured in

Question # 19

In the region surrounding a current carrying wire:

Question # 20

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

Question # 21

A beam of electrons is provided by an

Question # 22

The current is measured in

Question # 23

To convert galvanometer into ammeter we connect

Question # 24

The SI unit of flux density is.

Question # 25

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

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

The SI unit of magnetic permeability is

Question # 28

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

Question # 29

The magnetic field inside a solenoid can be increased by:

Question # 30

The unit of magnetic flux is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
A. 5N
B. 4N
C. 1.5N
D. 6N
2 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)
3

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
4 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)
5 The force experienced by an electron projected in a magnetic field B with a velocity V is given by
A. F=e(V x B)
B. F= -e(V x B)
C. F= e(B x V)
D. Both a and c
6 A field is uniform and much stronger:
A.

Inside a long solenoid

B.

Outside a long solenoid

C.

At the end of a long solenoid

D.

At the central point of long solenoid
7 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
8 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
9 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
10 In a straight current carrying conductor, the direction of magnetic field can be found by
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these

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