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

F = I(L x B) is a

Question # 2

Flurescent screen is a screen where visible spot

Question # 3

To convert galvanometer into ammeter we connect

Question # 4

if the field is directed along the normal to the area, then flux is:

Question # 5

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

Question # 6

The unit of flux density is also given by

Question # 7

The SI unit of flux density is

Question # 8

For the conversion of galvanometer into voltmeter, we connect a

Question # 9

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

Question # 10

A resistance used in voltmeter is called

Question # 11

The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by

Question # 12

A voltmeter is used to measure the

Question # 13

A charged particle moving at right angle to the magnetic field will experience

Question # 14

A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is

Question # 15

A resistance used in galvanometer to make it voltmeter is called

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:
A. -y direction
B. +y direction
C. +z direction
D. -z direction
2 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
3 A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is
A. 5N
B. 4N
C. 1.5N
D. 6N
4 Ammeter is used to measure
A. voltage
B. resistance
C. voltage and current
D. current
5 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
6 Method "lamp and scale arrangement" used to measure the
A. angle of deflection
B. restoring torque
C. magnetic field strength
D. current
7 Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:
A.

Thumb

B.

Curled fingers

C.

Middle finger

D.

Arm of right hand
8 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
9 Current is measured in
A. volts
B. watt
C. ohm
D. ampere
10 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant

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