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

Magnetic induction is also called as:

Question # 2

Lorentz force is defined as

Question # 3

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 4

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

Question # 5

The magnetic field outside the solenoid due to current is

Question # 6

In the expression of force experienced by electron, the direction of both v and B are

Question # 7

The SI unit of magnetic permeability is

Question # 8

The SI unit of flux density is.

Question # 9

The CRO is used for displaying the waveform of a given

Question # 10

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

Question # 11

The SI unit of magnetic flux is.

Question # 12

For the conversion of galvanometer into voltmeter, we connect a

Question # 13

The SI unit of magnetic induction is

Question # 14

A long wire wound tightly on a cylindrical core is called:

Question # 15

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

Question # 16

magnetic field is a:

Question # 17

The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of

Question # 18

Tesla is the unit of

Question # 19

A beam of electrons is provided by an

Question # 20

In the region surrounding a current carrying wire:

Question # 21

At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:

Question # 22

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

Question # 23

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 24

The field around a moving charge is called

Question # 25

A solenoid is a coil of wire which is:

Question # 26

The force experienced by an electron projected in a magnetic field B with a velocity V is given by

Question # 27

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

Question # 28

NmA-1 is commonly called:

Question # 29

A voltmeter is used to measure the

Question # 30

The sources of magnetic field are

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
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 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
4 The current is measured in
A. volts
B. watt
C. ampere
D. ohm
5 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
6 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
7 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
8 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)
9 If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is
A. F = B2
B. F = 0
C. F = B
D. F = B/2
10 The SI unit of magnetic flux is
A. NmA-2
B. NmA-1
C. NAm-1
D. Nm2A-1

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