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

A current carrying conductor sets up its own:

Question # 2

The SI unit of magnetic flux is

Question # 3

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

Question # 4

In the region surrounding a current carrying wire:

Question # 5

When the charged particle is projected at right angles to the field, then experienced by it will be:

Question # 6

In a moving coil galvanometer, the deflecting couple depends upon

Question # 7

At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:

Question # 8

For the conversion of galvanometer into voltmeter, we connect a

Question # 9

A solenoid is a coil of wire which is:

Question # 10

Centripetal force for electron is given by

Question # 11

Magnetic lines of force:

Question # 12

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 # 13

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 # 14

To convert galvanometer into ammeter we connect

Question # 15

A galvanometer is an instrument used to

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
2 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
3 Magnetic flux and flux density are related by
A. Flux density = flux x area
B. Flux density = flux / area
C. Flux density = flux - area
D. None of these
4 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
5 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
6 Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as
A. IT = 10-4 G
B. IT = 105G
C. IT = 103G
D. IT = 104G
7 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these
8 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
9 The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by
A. F=eVB
B. F=e2V/B
C. F=e/VB
D. F=B2/ev
10 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

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