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

The voltage increases linearly with

Question # 2

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

Question # 3

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

Question # 4

Ammeter is used to measure

Question # 5

The force acting on a charge moving in a magnetic field

Question # 6

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

Question # 7

A resistance used in voltmeter is called

Question # 8

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

Question # 9

if the field is directed along the normal to the area, then flux is:

Question # 10

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

Question # 11

(CRO) Cathode ray oscilloscope is a device used for high speed

Question # 12

Method "lamp and scale arrangement" used to measure the

Question # 13

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 # 14

The SI unit of flux density is

Question # 15

The angle of deflection of coil can be measured by the

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The CRO is used for displaying the waveform of a given
A. current
B. voltage
C. both of them
D. none of them
2 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
3 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
4 Resistance is measured in
A. volts
B. ampere
C. ohm
D. watt
5 A long wire wound tightly on a cylindrical core is called:
A. Potentiometer
B. Solenoid
C. Toroid
D. Wheat and stone bridge
6

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
7 If the value of galvanometer constant k = C/BAN is made small, the galvanometer can be made
A. Sensitive
B. Accurate
C. Stable
D. None of these
8 For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as
A. modification
B. voltage
C. current
D. resistance
9 Strength of magnetic field is measured in SI units, in:
A. N
B. N/Am
C. Am/N
D. Nm/A
10 The most suitable material for permanent magnet is
A. cobalt
B. iron
C. steel
D. alaminium

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