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

Flurescent screen is a screen where visible spot

Question # 2

Method "lamp and scale arrangement" used to measure the

Question # 3

In a straight current carrying conductor, the direction of magnetic field can be found by

Question # 4

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

Question # 5

A field is uniform and much stronger:

Question # 6

Magnetic lines of force:

Question # 7

When the charged particle is projected at right angles to the field, then experienced by it will be:

Question # 8

A voltmeter is used to measure the

Question # 9

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

Question # 10

The vector representation of force experience give the direction of

Question # 11

Total number of turns on 0.15 m length solenoid is 300. the value of n is:

Question # 12

Galvanometer is a device used for the detection of

Question # 13

The permeability of free space is measured in:

Question # 14

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 # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
2 The magnetic field outside the solenoid due to current is
A. strong
B. zero
C. weak
D. uniform
3 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
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 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
6 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
7

The pointer of a magnetic compass:
A.

Is affected only by permanent magnets

B.

Align itself parallel to the applied magnetic field

C.

Vibrates in the magnetic field of the current

D.

Aligns itself perpendicular to the magnetic field
8 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
9 The SI unit of magnetic induction is tesla which is equal to
A. Newton/ampere-meter or N/A-m
B. Newton/ampere2-meter or N/A2-m
C. Newton/ampere2-meter2 or N/A2-m2
D. Newton/ampere2-meter2or N/A2-m2
10 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these

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