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

In a moving coil galvanometer, the deflecting couple depends upon

Question # 2

Strength of magnetic field is measured in SI units, in:

Question # 3

How many number of anodes used in electron gun

Question # 4

A beam of electrons is provided by an

Question # 5

Amperean path is a:

Question # 6

Electron gun consist of

Question # 7

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Question # 8

A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 9

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

Question # 10

The magnetic field outside the solenoid due to current is

Question # 11

Weber is a unit of

Question # 12

The unit of magnetic flux is

Question # 13

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

Question # 14

The pointer of a magnetic compass:

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor
2 if the field is directed along the normal to the area, then flux is:
A.

Maximum

B.

Equal to zero

C.

Equal to BA

D.

Minimum
3 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
4 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
5 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
6 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
7 Current is measured in
A. volts
B. watt
C. ohm
D. ampere
8 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
9 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
10 The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
A. magnetic flux
B. magnetic flux density
C. magnetic induction
D. magnetic field intensity

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