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

Amperean path is a:

Question # 2

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

Question # 3

Which one of the following relations is correct?

Question # 4

For the conversion of galvanometer into voltmeter, we connect a

Question # 5

The SI unit of magnetic flux is.

Question # 6

The SI unit of flux density is.

Question # 7

The SI unit of magnetic permeability is

Question # 8

In the formula B= µ̻ nl, the symbol n denotes:

Question # 9

In the region surrounding a current carrying wire:

Question # 10

The SI unit of flux density is

Question # 11

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

Question # 12

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 # 13

The CRO is used for displaying the waveform of a given

Question # 14

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

Question # 15

The voltage increases linearly with

Question # 16

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

Question # 17

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

Question # 18

When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into

Question # 19

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

Question # 20

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

Question # 21

The SI unit of magnetic flux is

Question # 22

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

Question # 23

Centripetal force for electron is given by

Question # 24

A solenoid is a coil of wire which is:

Question # 25

A field is uniform and much stronger:

Question # 26

The pointer of a magnetic compass:

Question # 27

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

Question # 28

A galvanometer is an instrument used to

Question # 29

The vector representation of force experience give the direction of

Question # 30

Tesla is the unit of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
A. Maximum
B. Minimum
C. Zero
D. Very small
2 The magnetic field in the middle of a solenoid due to current is
A. weak
B. strong and uniform
C. none-uniform
D. zero
3 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
4 The e/m of an electron moving in a circular path in a magnetic field is equal to
A. V/Br
B. V/B2r2
C. V2/Br2
D. V2/Br
5 A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is
A. Zero
B. 105 m
C. 10-10N
D. 108N
6 A resistance used in galvanometer to make it voltmeter is called
A. shunt resistance
B. high resistance
C. zero resistance
D. none of these
7 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
8 When an electron enters in a magnetic field right angle to its motion, the magnitude of its velocity will be
A. changed
B. zero
C. unchanged
D. none of these
9 41 The force experience, when proton projected in a magnetic field with velocity 'v' is
A. +e(v x B)
B. -C(V x B)
C. +e2(v x B)
D. -e(v2x B)
10 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance

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