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 current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is

Question # 2

Avo-meter is used of measure the

Question # 3

Charge to mass ratio (e/m) of an electron is given by the relation

Question # 4

The vector representation of force experience give the direction of

Question # 5

Resistance is measured in

Question # 6

Which one of the following relations is correct?

Question # 7

To convert galvanometer into ammeter we connect

Question # 8

In a moving coil galvanometer, the deflecting couple depends upon

Question # 9

Current is measured in

Question # 10

The SI unit of flux density is

Question # 11

Galvanometer is a device used for the detection of

Question # 12

A galvanometer is an instrument used to

Question # 13

The voltage increases linearly with

Question # 14

The SI unit of flux density is.

Question # 15

Amperean path is a:

Question # 16

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

Question # 17

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

Question # 18

The sources of magnetic field are

Question # 19

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

Question # 20

The CRO is used for displaying the waveform of a given

Question # 21

How many number of anodes used in electron gun

Question # 22

'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?

Question # 23

The unit of magnetic flux is

Question # 24

The SI unit of magnetic flux is.

Question # 25

A solenoid is a coil of wire which is:

Question # 26

Magnetic flux and flux density are related by

Question # 27

The field around a moving charge is called

Question # 28

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 # 29

In the expression of force experienced by electron, the direction of both v and B are

Question # 30

When a suitable small resistance is put in parallel with the galvanometer coil, it is converted into

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 Avo-meter is used of measure the
A. current, voltage
B. voltage, resistance
C. resistance, current
D. current, voltage and resistance
2 A relationship between Gauses of magnetic induction and Tesla(T) is given by
A. G 10-3T
B. G = 10-2T
C. G = 10-4T
D. G = 10-1T
3 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
4 To convert galvanometer into ammeter we connect
A. small resistance in parallel with galvanometer
B. small resistance in series with galvanometer
C. high resistance in series with galvanometer
D. high resistance in parallel with galvanometer
5 The SI unit of flux density is
A. Newton/Amp-meter
B. Newton-m/Ampere
C. Newton-m/Amp2
D. Newton-Amp/meter
6 The torque per unit twist of coil is called
A. proportionality constant
B. gravitational constant
C. boltzman constant
D. coupling constant
7 The SI unit of magnetic permeability is
A. WB A-1m-1
B. WB mA-1
C. WB Am-1
D. None of these
8 In the region surrounding a current carrying wire:
A. A magnetic field is setup

B.

The lines of force are elliptical

C.

Direction of lines of forces depends upon direction of current

D.

Both (A) and (C)
9 Total number of turns on 0.15 m length solenoid is 300. the value of n is:
A. Greater than 300
B. Smaller than 300
C. Equal to 300
D. Any of (A) or (B)
10 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

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