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

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

Question # 2

The voltage increases linearly with

Question # 3

It is customary represent a current flowing towards the reader by a symbol

Question # 4

A voltmeter is used to measure the

Question # 5

The CRO is used for displaying the waveform of a given

Question # 6

The unit of flux density is also given by

Question # 7

Lorentz force is defined as

Question # 8

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

Question # 9

When the waveform of one voltage is increasing and that of second is decreasing and vice versa, then phase difference between these voltage is

Question # 10

The CRO deflects the beam of electrons, when they passes through uniform

Question # 11

The SI unit of flux density is.

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

Magnetic flux and flux density are related by

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
2

the current is pass through the straight wire. The magnetic field established around it has its lines of force:
A.

Circular and endless

B.

Oval in shape and endless

C.

Straight

D.

Parabolic
3 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
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 In order to make a voltmeter, high resistance is connected with galvanometer, in
A. perpendicular
B. may be paralled or pendicular
C. series
D. none of these
6 CRO deflects the beam of
A. proton
B. a-particle
C. electron
D. neutron
7 For the conversion of galvanometer into voltmeter, we connect a
A. small resistance in series with galvanometer
B. small resistance in parallel with galvanometer
C. high resistance in parallel with galvanometer
D. high resistance series with galvanometer
8 A magnetic force on an electron travelling with 108ms-1parallel to a field of strength 1 Wb m-2is
A. Zero
B. 105 m
C. 10-10N
D. 108N
9 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
10 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

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