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

The SI unit of magnetic induction is

Question # 2

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

Question # 3

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

Question # 4

Magnetic lines of force:

Question # 5

Ammeter is used to measure

Question # 6

'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?

Question # 7

Galvanometer is a device used for the detection of

Question # 8

The strength of magnetic field around the current conductor is

Question # 9

The CRO is used for displaying the waveform of a given

Question # 10

It is customary represent a current flowing towards the reader by a symbol

Question # 11

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

Question # 12

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

Question # 13

Resistance is measured in

Question # 14

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 # 15

The SI unit of flux density is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The gavanometer constant of a moving coil galvanometer is given by
A. K=BAN/C
B. K=BN/CA
C. K=NAC/B
D. K=C/BAN
2 Centripetal force for electron is given by
A. mv2/ r
B. mv / r2
C. mv2/ r
D. mr2/ v
3 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
4 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1
5 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
6 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
7 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law
8 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
9 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
10 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these

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