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

Avo-meter is used of measure the

Question # 2

The magnetic field outside the solenoid due to current is

Question # 3

The e/m of an electron moving in a circular path in a magnetic field is equal to

Question # 4

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

Question # 5

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

Question # 6

The gavanometer constant of a moving coil galvanometer is given by

Question # 7

Flurescent screen is a screen where visible spot

Question # 8

The field around a moving charge is called

Question # 9

The CRO deflects the beam of electrons, when they passes through uniform

Question # 10

The strength of magnetic field around the current conductor is

Question # 11

Magnetic induction is also called as:

Question # 12

The SI unit of magnetic induction is

Question # 13

Weber is a unit of

Question # 14

magnetic field is a:

Question # 15

NmA-1 is commonly called:

Question # 16

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

Question # 17

The angle of deflection of coil can be measured by the

Question # 18

A beam of electrons is provided by an

Question # 19

Resistance is measured in

Question # 20

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

Question # 21

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

Question # 22

The voltage increases linearly with

Question # 23

Which one of the following relations is correct?

Question # 24

If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:

Question # 25

Amperean path is a:

Question # 26

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 27

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 # 28

At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:

Question # 29

Strength of magnetic field is measured in SI units, in:

Question # 30

The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
A. 90°
B. 75°
C. 0°
D. 180°
2 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
3 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge
4 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2
5 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
6 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
7 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
8

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
9 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
10 To convert galvanometer into ammeter we connect
A. small resistance in parallel with galvanometer
B. small resistance in series with galvanometer
C. high resistance in series with galvanometer
D. high resistance in parallel with galvanometer

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