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

It is customary represent a current flowing towards the reader by a symbol

Question # 2

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

Question # 3

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 4

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

Question # 5

The magnetic field inside a solenoid can be increased by:

Question # 6

The SI unit of magnetic permeability is

Question # 7

Which is modified form of galvanometer

Question # 8

Current is measured in

Question # 9

Which one of the following relations is correct?

Question # 10

In the region surrounding a current carrying wire:

Question # 11

Method "lamp and scale arrangement" used to measure the

Question # 12

The angle of deflection of coil can be measured by the

Question # 13

The SI unit of magnetic induction is

Question # 14

A current carrying conductor sets up its own:

Question # 15

A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is

Question # 16

Tesla is the unit of

Question # 17

In a moving coil galvanometer, the deflecting couple depends upon

Question # 18

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

Question # 19

The torque per unit twist of coil is called

Question # 20

The SI unit of flux density is.

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

The direction of lines of force depends upon the direction of

Question # 25

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

Question # 26

The unit of magnetic flux is

Question # 27

To convert galvanometer into ammeter we connect

Question # 28

Flurescent screen is a screen where visible spot

Question # 29

A resistance used in voltmeter is called

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
2 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2
3 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
4 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these
5 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge
6 Magnetic flux and flux density are related by
A. Flux density = flux x area
B. Flux density = flux / area
C. Flux density = flux - area
D. None of these
7 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
8 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
9 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
10 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these

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