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

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

Question # 2

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

Question # 3

The force acting on a charge moving in a magnetic field

Question # 4

In the region surrounding a current carrying wire:

Question # 5

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

Question # 6

Magnetic flux and flux density are related by

Question # 7

The magnetic field inside a solenoid can be increased by:

Question # 8

Galvanometer is a device used for the detection of

Question # 9

If volume of wire is 'AL' and there are 'n' numbers of charge carriers per unit volume, then the total number of charge carriers are

Question # 10

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

Question # 11

The SI unit of magnetic flux is.

Question # 12

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

Question # 13

The total number of lines of magnetic induction pasing through a surface perpendicular to the magnetic field is called

Question # 14

A current carrying conductor sets up its own:

Question # 15

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

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 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
2 'K' is the proportionality constant of force experienced by conductor. What is the value of 'K' in SI units?
A. 0
B. 1
C. 0.5
D. -1
3 A charged particle moving at right angle to the magnetic field will experience
A. minimum force
B. maximum force
C. zero
D. moderate force
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 A galvanometer in which the coil comes to rest quickly after the current passed through it, or the current stopped form flowing through it, is called
A. dead beat galvanometer
B. stable galvanometer
C. shunt galvanometer
D. sensitive galvanomter
6 A beam of electrons is provided by an
A. electron gun
B. Suppray
C. Injection
D. None of these
7 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
8 The current in microamperes required to produce one millimeter deflection on a scale placed one meter away from the mirror of the galvanometer, defined the sensitivity of
A. ammeter
B. voltmeter
C. galvanometer
D. avo-meter
9 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
10 When current passes through a solenoid coil, it behaves like a
A. loop
B. circle
C. bar magnet
D. none of these

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