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

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 # 3

A beam of electrons is provided by an

Question # 4

Tesla is the unit of

Question # 5

The SI unit of flux density is

Question # 6

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

Question # 7

The angle of deflection of coil can be measured by the

Question # 8

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

Question # 9

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

Question # 10

F = I(L x B) is a

Question # 11

To convert galvanometer into ammeter we connect

Question # 12

The e/m of an electron moving in a circular path in a magnetic field is equal to

Question # 13

NmA-1 is commonly called:

Question # 14

magnetic field is a:

Question # 15

The magnetic field inside a solenoid can be increased by:

Question # 16

Magnetic induction is also called as:

Question # 17

A field is uniform and much stronger:

Question # 18

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:

Question # 19

The direction of lines of force depends upon the direction of

Question # 20

Magnetic lines of force:

Question # 21

The permeability of free space is measured in:

Question # 22

The field around a moving charge is called

Question # 23

The SI unit of flux density is.

Question # 24

A voltmeter is used to measure the

Question # 25

A current carrying conductor sets up its own:

Question # 26

CRO deflects the beam of

Question # 27

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

Question # 28

Resistance is measured in

Question # 29

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

Question # 30

The voltage increases linearly with

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The current is measured in
A. volts
B. watt
C. ampere
D. ohm
2 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
3 Method "lamp and scale arrangement" used to measure the
A. angle of deflection
B. restoring torque
C. magnetic field strength
D. current
4 The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed
A. parallel to the field
B. Perpendicular to the field
C. At an angle of 45 to the field
D. None of the above
5 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)
6 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
7 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°
8 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
9 The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called
A. magnetic flux
B. magnetic flux density
C. magnetic induction
D. magnetic field intensity
10 The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by
A. F =q(v/B)
B. F=q2(v x B)
C. F=q(v x B)
D. F= vx B

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