ECAT Pre General Science Physics Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

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

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ECAT Pre General Science Physics Chapter 14 Electromagnetism

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Question # 1

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

Question # 2

Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:

Question # 3

The force acting on a charge moving in a magnetic field

Question # 4

A full-scale deflection is obtained in a galvanometer with a current of few

Question # 5

The SI unit of flux density is

Question # 6

if the field is directed along the normal to the area, then flux is:

Question # 7

Amperean path is a:

Question # 8

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 9

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

Question # 10

The sources of magnetic field are

Question # 11

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

Question # 12

F = I(L x B) is a

Question # 13

The CRO is used for displaying the waveform of a given

Question # 14

A beam of electrons is provided by an

Question # 15

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 # 16

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

Question # 17

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

Question # 18

the current is pass through the straight wire. The magnetic field established around it has its lines of force:

Question # 19

The magnetic field inside a solenoid can be increased by:

Question # 20

If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made

Question # 21

When current passes through a solenoid coil, it behaves like a

Question # 22

A resistance used in voltmeter is called

Question # 23

Resistance is measured in

Question # 24

The SI unit of magnetic flux is.

Question # 25

The magnetic field outside the solenoid due to current is

Question # 26

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

Question # 27

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 28

Weber is a unit of

Question # 29

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 30

The unit of flux density is also given by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these
2 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
3 In a straight current carrying conductor, the direction of magnetic field can be found by
A. right hand rule
B. left hand rule
C. head to tall rule
D. none of these
4 A relationship between Gauses of magnetic induction and Tesla(T) is given by
A. G 10-3T
B. G = 10-2T
C. G = 10-4T
D. G = 10-1T
5 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
6 The galvanometer can be made sensitive if the value of the factor C/BAN is
A. constant
B. small
C. large
D. none of these
7 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
8 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
9 The working of galvanometer depends upon torque exerted on a current carrying coil in
A. magnetic field
B. electric field
C. gravitational field
D. nuclear field
10 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

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