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

Lorentz force is defined as

Question # 2

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

Question # 3

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 4

The magnetic field in the middle of a solenoid due to current is

Question # 5

The sources of magnetic field are

Question # 6

The pointer of a magnetic compass:

Question # 7

Tesla is the unit of

Question # 8

Ammeter is used to measure

Question # 9

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

Question # 10

The strength of magnetic field around the current conductor is

Question # 11

The current is measured in

Question # 12

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

Question # 13

Electron gun consist of

Question # 14

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

Question # 15

A resistance used in voltmeter is called

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Magnetic induction is also called as:
A.

Ampere’s law

B.

Faraday’s law

C.

Lenz’s law

D.

Newton’s law
2 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
3 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
4 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
5 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
6 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
7 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
8 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these
9 The SI unit of flux density is.
A. Tesla
B. Weber
C. Gaun
D. Weber/meter
10 If current through conductor is 1 A and length of conductor is 1m placed at right angle to the magnetic field, then the strength of magnetic field is
A. F = B2
B. F = 0
C. F = B
D. F = B/2

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