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

Weber is a unit of

Question # 2

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

Question # 3

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

Question # 4

The angle of deflection of coil can be measured by the

Question # 5

How many number of anodes used in electron gun

Question # 6

A resistance used in galvanometer to make it voltmeter is called

Question # 7

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 # 8

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

Question # 9

Avo-meter is used of measure the

Question # 10

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

Question # 11

The SI unit of magnetic flux is.

Question # 12

A resistance used in voltmeter is called

Question # 13

The sources of magnetic field are

Question # 14

When the charged particle is projected at right angles to the field, then experienced by it will be:

Question # 15

The force experienced by charged particle is maximum, if it moves

Question # 16

Electron gun consist of

Question # 17

To convert galvanometer into ammeter we connect

Question # 18

The permeability of free space is measured in:

Question # 19

If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are

Question # 20

Flurescent screen is a screen where visible spot

Question # 21

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 # 22

The current sensitivity of the galvanometer is

Question # 23

The SI unit of magnetic induction is

Question # 24

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 25

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 # 26

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

Question # 27

The CRO is used for displaying the waveform of a given

Question # 28

Which one of the following relations is correct?

Question # 29

The SI unit of magnetic flux is

Question # 30

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
3 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
A. ammeter
B. voltmeter
C. galvanometer
D. avo-meter
4 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
5 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
6 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
7 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
8 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
9 For the conversion of galvanometer into voltmeter, we connect a
A. small resistance in series with galvanometer
B. small resistance in parallel with galvanometer
C. high resistance in parallel with galvanometer
D. high resistance series with galvanometer
10 The magnetic field inside a solenoid can be increased by:
A. Increasing n
B. Decreasing I
C. Increasing I
D. By using iron core within solenoid

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