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

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

Question # 2

For the conversion of galvanometer into voltmeter, we connect a

Question # 3

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

Question # 4

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

Question # 5

The SI unit of magnetic flux is.

Question # 6

The permeability of free space is measured in:

Question # 7

Magnetic lines of force:

Question # 8

The torque per unit twist of coil is called

Question # 9

The force experienced by charged particle is maximum, if it moves

Question # 10

The CRO deflects the beam of electrons, when they passes through uniform

Question # 11

The sources of magnetic field are

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

Electron gun consist of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon
A. Heating effect of current
B. Chemical effect of current
C. Magnetic effect of current
D. Electromagnetic effect of current
2 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
3 'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
A. 0
B. 1
C. 0.5
D. -1
4 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area
5 Current is measured in
A. volts
B. watt
C. ohm
D. ampere
6 A full-scale deflection is obtained in a galvanometer with a current of few
A. ampere
B. volts
C. milliampere
D. ohm
7 The magnetic field inside a solenoid can be increased by:
A. Increasing n
B. Decreasing I
C. Increasing I
D. By using iron core within solenoid
8 Galvanometer is a device used for the detection of
A. voltage
B. current
C. temperature
D. pressure
9 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
10 When the charged particle is projected at right angles to the field, then experienced by it will be:
A. Maximum
B. Zero
C. qvB
D. Both (A) and (B)

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