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

Which is modified form of galvanometer

Question # 2

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

Question # 3

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

Question # 4

The current is measured in

Question # 5

The SI unit of magnetic induction is

Question # 6

To convert galvanometer into ammeter we connect

Question # 7

Avo-meter is used of measure the

Question # 8

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

Question # 9

Tesla is the unit of

Question # 10

A beam of electrons is provided by an

Question # 11

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

Question # 12

The strength of magnetic field around the current conductor is

Question # 13

A voltmeter is used to measure the

Question # 14

magnetic field is a:

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

A galvanometer is an instrument used to

Question # 19

Magnetic lines of force:

Question # 20

When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be

Question # 21

Centripetal force for electron is given by

Question # 22

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

Question # 23

The magnetic field outside the solenoid due to current is

Question # 24

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

Question # 25

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 # 26

A solenoid is a coil of wire which is:

Question # 27

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 28

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

Question # 29

The field around a moving charge is called

Question # 30

The direction of lines of force depends upon the direction of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is
A. 90°
B. 75°
C. 0°
D. 180°
2 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
3 If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:
A. Becomes Half
B. Becomes double
C. Is not affected
D. Becomes one fourth
4 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium
5 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
6 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
7 A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is
A. 5N
B. 4N
C. 1.5N
D. 6N
8 Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as
A. IT = 10-4 G
B. IT = 105G
C. IT = 103G
D. IT = 104G
9 In a moving coil galvanometer, the deflecting couple depends upon
A. area of the coil
B. number of turns of coil
C. value of magnetic field
D. all of the above
10 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

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