ECAT Pre General Science Physics Chapter 14 MCQ Test With Answer

MCQ's Test For ECAT Pre General Science Physics Chapter 14 Electromagnetism

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

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ECAT Pre General Science Physics Chapter 14 Electromagnetism

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Question # 1

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

Question # 2

Amperean path is a:

Question # 3

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 # 4

The SI unit of flux density is.

Question # 5

Flurescent screen is a screen where visible spot

Question # 6

magnetic field is a:

Question # 7

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

Question # 8

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

Question # 9

The SI unit of magnetic induction is tesla which is equal to

Question # 10

In order to make a voltmeter, high resistance is connected with galvanometer, in

Question # 11

A solenoid is a coil of wire which is:

Question # 12

Resistance is measured in

Question # 13

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

Question # 14

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

Question # 15

The force experienced by charged particle is maximum, if it moves

Question # 16

The force experienced by a single charge carrier moving with velocity 'v' i magnetic field of strength 'B' is given by

Question # 17

The vector representation of force experience give the direction of

Question # 18

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:

Question # 19

The unit of flux density is also given by

Question # 20

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

Question # 21

How many number of anodes used in electron gun

Question # 22

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

Question # 23

NmA-1 is commonly called:

Question # 24

The working of galvanometer depends upon torque exerted on a current carrying coil in

Question # 25

The current sensitivity of the galvanometer is

Question # 26

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

Question # 27

The SI unit of flux density is

Question # 28

In a moving coil galvanometer, the deflecting couple depends upon

Question # 29

Tesla is the unit of

Question # 30

Galvanometer is a device used for the detection of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 Electron gun consist of
A. three anodes
B. heating cathode
C. three anodes
D. three anodes , heating cathode, grid
4 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge
5 Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:
A. Maximum
B. Minimum
C. Zero
D. Very small
6 The force exerted on a conductor of length L, carrying current I when placed in a magnetic field B is given by
A. F=IB/L
B. F= L x B/I
C. F = IL x B
D. F = IL . B
7 The field around a moving charge is called
A. magnetic field
B. conservative field
C. non-conservative field
D. none of these
8 Which one of the following relations is correct?
A. 1 Wb-m2= Nm-1A-1
B. 1 tesla = 104 gausses
C. 1 Wb-m2= 1 tesla
D. All of the above
9 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
10 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them

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