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

CRO deflects the beam of

Question # 2

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 3

A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is

Question # 4

The SI unit of flux density is.

Question # 5

The vector representation of force experience give the direction of

Question # 6

The sources of magnetic field are

Question # 7

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

Question # 8

Magnetic flux and flux density are related by

Question # 9

Galvanometer is a device used for the detection of

Question # 10

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

Question # 11

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

Question # 12

The current sensitivity of the galvanometer is

Question # 13

The permeability of free space is measured in:

Question # 14

Weber is a unit of

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
2 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
3 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
4 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
5 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
6 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
7 Total number of turns on 0.15 m length solenoid is 300. the value of n is:
A. Greater than 300
B. Smaller than 300
C. Equal to 300
D. Any of (A) or (B)
8 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
9 When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
A. 90°
B. 75°
C. 0°
D. 180°
10 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:
A. -y direction
B. +y direction
C. +z direction
D. -z direction

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