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

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

Question # 2

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

Question # 3

How many number of anodes used in electron gun

Question # 4

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

Question # 5

CRO deflects the beam of

Question # 6

Galvanometer is a device used for the detection of

Question # 7

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 8

Lorentz force is defined as

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

A galvanometer is an instrument used to

Question # 15

The pointer of a magnetic compass:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
2 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
3 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
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 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
6 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
7 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
8 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
9 if the field is directed along the normal to the area, then flux is:
A.

Maximum

B.

Equal to zero

C.

Equal to BA

D.

Minimum
10 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm

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