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

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 2

Tesla is the unit of

Question # 3

The SI unit of flux density is

Question # 4

A resistance used in galvanometer to make it voltmeter is called

Question # 5

The most suitable material for permanent magnet is

Question # 6

The angle of deflection of coil can be measured by the

Question # 7

Lorentz force is defined as

Question # 8

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 9

The SI unit of magnetic induction is tesla which is equal to

Question # 10

A voltmeter is used to measure the

Question # 11

A shunt resistance parallel to the galvanometer is used to convert it into

Question # 12

The gavanometer constant of a moving coil galvanometer is given by

Question # 13

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

Question # 14

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 # 15

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

Question # 16

The current sensitivity of the galvanometer is

Question # 17

Magnetic induction is also called as:

Question # 18

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 # 19

F = I(L x B) is a

Question # 20

For the conversion of galvanometer into voltmeter, we connect a

Question # 21

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 # 22

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

Question # 23

magnetic field is a:

Question # 24

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 # 25

The SI unit of magnetic flux is

Question # 26

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

Question # 27

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

Question # 28

Avo-meter is used of measure the

Question # 29

The direction of lines of force depends upon the direction of

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The unit of magnetic flux is
A. Weber-m2
B. Weber-m3
C. Henry
D. Weber
2 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
3 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
4 A solenoid is a coil of wire which is:
A.

Short, loosely wound, cylindrical

B.

Long, tightly wound, spherical

C.

Long, loosely wound, cylindrical

D.

Long, tightly wound, cylindrical
5 Current is measured in
A. volts
B. watt
C. ohm
D. ampere
6 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
7 Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
A. Maximum
B. Minimum
C. Zero
D. Very small
8 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
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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