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

Current is measured in

Question # 2

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

Question # 3

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

Question # 4

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 # 5

Flurescent screen is a screen where visible spot

Question # 6

The working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 7

Ammeter is used to measure

Question # 8

The SI unit of magnetic induction is tesla which is equal to

Question # 9

Magnetic induction is also called as:

Question # 10

CRO deflects the beam of

Question # 11

F = I(L x B) is a

Question # 12

Centripetal force for electron is given by

Question # 13

The pointer of a magnetic compass:

Question # 14

In a straight current carrying conductor, the direction of magnetic field can be found by

Question # 15

The current sensitivity of the galvanometer is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
2 A galvanometer is an instrument used to
A. measure voltage across a circuit
B. detect current in a circuit
C. measure current flowing through a circuit
D. none of these
3

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
4 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
5 Charge to mass ratio (e/m) of an electron is given by the relation
A. e/m = 2V/Br2
B. e/m = 2V/B2r
C. e/m = 2V/B2r2
D. e/m = V/2B2r2
6 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
7 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
8 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)
9 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
10 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)

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