ECAT Pre Engineering Physics Chapter 14 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Question # 1

The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Question # 2

The unit of flux density is also given by

Question # 3

Lorentz force is defined as

Question # 4

Resistance is measured in

Question # 5

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

Question # 6

The CRO is used for displaying the waveform of a given

Question # 7

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

Question # 8

The SI unit of magnetic induction is

Question # 9

Magnetic flux and flux density are related by

Question # 10

A charged particle moving at right angle to the magnetic field will experience

Question # 11

Tesla is the unit of

Question # 12

The SI unit of magnetic flux is.

Question # 13

If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are

Question # 14

The most suitable material for permanent magnet is

Question # 15

The magnetic field outside the solenoid due to current is

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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 A solenoid is a coil of wire which is:
A.

Short, loosely wound, cylindrical

B.

Long, tightly wound, spherical

C.

Long, loosely wound, cylindrical

D.

Long, tightly wound, cylindrical
3 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
4 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
5 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)
6 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
7 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
8 The force acting as one meter length of the conductor placed at right angle to the magnetic field, when one A current is passing through it, defines the
A. magnetic flux
B. magnetic induction
C. magnetic field
D. self inductance
9 The SI unit of magnetic induction is
A. Gauses
B. Tesla
C. Weber
D. Weber2
10 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these

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