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 working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Question # 2

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

Question # 3

A resistance used in voltmeter is called

Question # 4

A beam of electrons is provided by an

Question # 5

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

Question # 6

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

Question # 7

In a straight current carrying conductor, the direction of magnetic field can be found by

Question # 8

The galvanometer can be made sensitive if the value of the factor C/BAN is

Question # 9

Avo-meter is used of measure the

Question # 10

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

Question # 11

For the conversion of galvanometer into voltmeter, we connect a

Question # 12

Which is modified form of galvanometer

Question # 13

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

Question # 14

The SI unit of magnetic flux is.

Question # 15

Resistance is measured in

Question # 16

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

Question # 17

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

Question # 18

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 19

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

Question # 20

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 # 21

Magnetic flux and flux density are related by

Question # 22

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

Question # 23

Method "lamp and scale arrangement" used to measure the

Question # 24

The magnetic field inside a solenoid can be increased by:

Question # 25

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

Question # 26

Which one of the following relations is correct?

Question # 27

Magnetic induction is also called as:

Question # 28

NmA-1 is commonly called:

Question # 29

The gavanometer constant of a moving coil galvanometer is given by

Question # 30

Electron gun consist of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:
A. BACosѲ

B. Zero
C. BA
D. BA sinѲ
3 Tesla is the unit of
A. Magnetic induction or flux density
B. Magnetic flux
C. Self inductance
D. None of these
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 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
6 Method "lamp and scale arrangement" used to measure the
A. angle of deflection
B. restoring torque
C. magnetic field strength
D. current
7 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
8 A relationship between Gauses of magnetic induction and Tesla(T) is given by
A. G 10-3T
B. G = 10-2T
C. G = 10-4T
D. G = 10-1T
9 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
10 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density

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