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

In a moving coil galvanometer, the deflecting couple depends upon

Question # 2

The strength of magnetic field around the current conductor is

Question # 3

The magnetic force exerted on an electron moving with velocity 'v' at right angle to the magnetic field is given by

Question # 4

NmA-1 is commonly called:

Question # 5

To convert galvanometer into ammeter we connect

Question # 6

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

Question # 7

The SI unit of magnetic permeability is

Question # 8

Resistance is measured in

Question # 9

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

Question # 10

Tesla is the unit of

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

Lorentz force is defined as

Question # 15

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

Question # 16

Avo-meter is used of measure the

Question # 17

Method "lamp and scale arrangement" used to measure the

Question # 18

The SI unit of flux density is.

Question # 19

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

Question # 20

Centripetal force for electron is given by

Question # 21

The voltage increases linearly with

Question # 22

The magnetic field inside a solenoid can be increased by:

Question # 23

The CRO is used for displaying the waveform of a given

Question # 24

A current carrying conductor sets up its own:

Question # 25

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 26

The unit of flux density is also given by

Question # 27

The gavanometer constant of a moving coil galvanometer is given by

Question # 28

The torque per unit twist of coil is called

Question # 29

The SI unit of magnetic flux is

Question # 30

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 When charged particle is projected perpendicular to a uniform magnetic field its trajectory is
A. circular
B. elliptical
C. cycloid
D. straight line
2

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
3 The vector representation of force experience give the direction of
A. magnetic field
B. current
C. length of conductor
D. force
4 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
5 Flurescent screen is a screen where visible spot
A. vanishes
B. is made
C. becomes small and large
D. none of these
6 The current sensitivity of the galvanometer is
A. C/BAN
B. BAN/C
C. CAN/B
D. CBN/A
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 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
9 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
10 The strength of magnetic field around the current conductor is
A. Smaller near the conductor
B. Greater near the conductor
C. Greater at the large distance from the conductor
D. Constant near and away from the conductor

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