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 magnetic field inside a solenoid can be increased by:

Question # 2

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

Question # 3

CRO deflects the beam of

Question # 4

The current is measured in

Question # 5

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

Question # 6

'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?

Question # 7

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

Question # 8

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

The strength of magnetic field around the current conductor is

Question # 13

How many number of anodes used in electron gun

Question # 14

NmA-1 is commonly called:

Question # 15

In the region surrounding a current carrying wire:

Question # 16

A resistance used in galvanometer to make it voltmeter is called

Question # 17

magnetic field is a:

Question # 18

The pointer of a magnetic compass:

Question # 19

Resistance is measured in

Question # 20

The SI unit of magnetic flux is.

Question # 21

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

Question # 22

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 23

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

Question # 24

The magnetic field in the middle of a solenoid due to current is

Question # 25

Electron gun consist of

Question # 26

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

Question # 27

The force acting on a charge moving in a magnetic field

Question # 28

The field around a moving charge is called

Question # 29

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

Question # 30

Flurescent screen is a screen where visible spot

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
2 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
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 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these
5 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
6 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
7

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
8 A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called
A. dead beat galvanometer
B. stable galvanometer
C. shunt galvanometer
D. sensitive galvanomter
9 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these
10 When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
A. Voltmeter
B. Avometer
C. Ammeter
D. None of these

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