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

00:00
Question # 1

NmA-1 is commonly called:

Question # 2

The gavanometer constant of a moving coil galvanometer is given by

Question # 3

Resistance is measured in

Question # 4

The galvanometer can be made sensitive if the value of the factor C/BAN is

Question # 5

In the region surrounding a current carrying wire:

Question # 6

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 7

To convert galvanometer into ammeter we connect

Question # 8

The current is measured in

Question # 9

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

Question # 10

Ammeter is used to measure

Question # 11

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 # 12

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

Question # 13

The magnetic field inside a solenoid can be increased by:

Question # 14

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

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 When some compass needles are placed on a card board along a circle with the center at the wire, they will
A.

Point the direction of N-S

B.

Set themselves tangential to the circle

C.

Point in the direction of E-W

D.

None of these
2 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
3 Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:
A. BACosѲ

B. Zero
C. BA
D. BA sinѲ
4 It is customary represent a current flowing towards the reader by a symbol
A. (x)
B. (+)
C. (.)
D. (-)
5 The CRO deflects the beam of electrons, when they passes through uniform
A. electric field
B. gravitational field
C. magnetic flax
D. magnetic field
6 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
7 F = I(L x B) is a
A. vector
B. scalar
C. unit vector
D. none of these
8 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
9 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
10

The pointer of a magnetic compass:
A.

Is affected only by permanent magnets

B.

Align itself parallel to the applied magnetic field

C.

Vibrates in the magnetic field of the current

D.

Aligns itself perpendicular to the magnetic field

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