ECAT Pre Computer Science Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

Try The MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

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ECAT Physics Chapter 14 Electromagnetism

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Question # 1

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

Question # 2

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

Question # 3

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 # 4

The CRO is used for displaying the waveform of a given

Question # 5

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

Question # 6

Magnetic flux and flux density are related by

Question # 7

A solenoid is a coil of wire which is:

Question # 8

The force acting on a charge moving in a magnetic field

Question # 9

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

Question # 10

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

Question # 11

Galvanometer is a device used for the detection of

Question # 12

magnetic field is a:

Question # 13

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

Question # 14

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

Question # 15

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
2 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
3 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
4 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
5 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
6 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
7 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
8 Which one of the following relations is correct?
A. 1 Wb-m2= Nm-1A-1
B. 1 tesla = 104 gausses
C. 1 Wb-m2= 1 tesla
D. All of the above
9 The CRO deflects the beam of electrons, when they passes through uniform
A. electric field
B. gravitational field
C. magnetic flax
D. magnetic field
10 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them

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