ECAT Pre Engineering Physics Chapter 14 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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

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Physics ECAT Pre Engineering Chapter 14 Electromagnetism

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Question # 1

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

Question # 2

Magnetic lines of force:

Question # 3

The direction of lines of force depends upon the direction of

Question # 4

Lorentz force is defined as

Question # 5

A resistance used in voltmeter is called

Question # 6

Ammeter is used to measure

Question # 7

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

Question # 8

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

Question # 9

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

Question # 10

The pointer of a magnetic compass:

Question # 11

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

Question # 12

A solenoid is a coil of wire which is:

Question # 13

The SI unit of magnetic flux is.

Question # 14

When charged particle is projected perpendicular to a uniform magnetic field its trajectory is

Question # 15

The galvanometer can be made sensitive if the value of the factor C/BAN is

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
2 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
3 The magnetic field inside a solenoid can be increased by:
A. Increasing n
B. Decreasing I
C. Increasing I
D. By using iron core within solenoid
4 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
5 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
6 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
7 How many number of anodes used in electron gun
A. one
B. two
C. three
D. six
8 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
9 The unit of flux density is also given by
A. Weber/m2or Wb . m-2
B. Weber/mor Wb . m
C. Weber/mor Wb . m-1
D. Weber or Wb
10 magnetic field is a:
A.

Vector quantity

B.

Scalar quantity

C.

Scalar as well as scalar quantity

D.

Any of (A) or (B)

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