ECAT Pre Computer Science Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Physics Chapter 14 Electromagnetism

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

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ECAT Physics Chapter 14 Electromagnetism

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Question # 1

Tesla is the unit of

Question # 2

For the conversion of galvanometer into voltmeter, we connect a

Question # 3

A voltmeter is used to measure the

Question # 4

Which is modified form of galvanometer

Question # 5

F = I(L x B) is a

Question # 6

Electron gun consist of

Question # 7

In the region surrounding a current carrying wire:

Question # 8

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

Question # 9

A beam of electrons is provided by an

Question # 10

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

Question # 11

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 12

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

Question # 13

A resistance used in galvanometer to make it voltmeter is called

Question # 14

The magnetic field outside the solenoid due to current is

Question # 15

The magnetic field inside a solenoid can be increased by:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
2 The sources of magnetic field are
A. isolated magnetic poles
B. charges at rest
C. charges in motion
D. none of these
3 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
4 When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into
A. Voltmeter
B. Avometer
C. Ammeter
D. None of these
5 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
6 A galvanometer is an instrument used to
A. measure voltage across a circuit
B. detect current in a circuit
C. measure current flowing through a circuit
D. none of these
7 A current carrying conductor sets up its own:
A.

Electric field

B.

Nuclear field

C.

Magnetic field

D.

Both (A) and (C)

8 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point

9 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
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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