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

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

Question # 2

A long wire wound tightly on a cylindrical core is called:

Question # 3

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

Question # 4

A field is uniform and much stronger:

Question # 5

The permeability of free space is measured in:

Question # 6

A current carrying conductor sets up its own:

Question # 7

Amperean path is a:

Question # 8

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 9

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

Question # 10

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

Question # 11

The SI unit of magnetic induction is

Question # 12

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 13

The direction of lines of force depends upon the direction of

Question # 14

A galvanometer is an instrument used to

Question # 15

A resistance used in galvanometer to make it voltmeter is called

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 It is customary represent a current flowing towards the reader by a symbol
A. (x)
B. (+)
C. (.)
D. (-)
3 The gavanometer constant of a moving coil galvanometer is given by
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
4 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area

5 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
6 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
7 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these
8 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
9 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
10 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge

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