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

Avo-meter is used of measure the

Question # 2

41 The force experience, when proton projected in a magnetic field with velocity 'v' is

Question # 3

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 # 4

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

Question # 5

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

Question # 6

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

Question # 7

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 # 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

Question # 9

Which one of the following relations is correct?

Question # 10

How many number of anodes used in electron gun

Question # 11

Galvanometer is a device used for the detection of

Question # 12

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

Question # 13

The SI unit of flux density is.

Question # 14

A galvanometer is an instrument used to

Question # 15

The most suitable material for permanent magnet is

Question # 16

The force acting on a charge moving in a magnetic field

Question # 17

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

Question # 18

The direction of lines of force depends upon the direction of

Question # 19

In a moving coil galvanometer, the deflecting couple depends upon

Question # 20

A resistance used in voltmeter is called

Question # 21

Lorentz force is defined as

Question # 22

Ammeter is used to measure

Question # 23

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

Question # 24

Amperean path is a:

Question # 25

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

Question # 26

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

Question # 27

Hold the solenoid in the right hand with fingers curling in the direction of current. The direction of the field will be given by:

Question # 28

The straight current carrying conductor experiences maximum force in a uniform magnetic field when it is placed

Question # 29

The SI unit of magnetic flux is

Question # 30

The pointer of a magnetic compass:

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A meter wire carraying a current of 2A is at right angle to the uniform magnetic field of 0.5 Weber/m2The force on the wire is
A. 5N
B. 4N
C. 1.5N
D. 6N
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 A voltmeter is used to measure the
A. potential difference
B. current
C. temperature
D. resistance
4 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge
5 At a given instant, a photon moves in +x direction in a region where there magnetic field in -z direction. The magnetic force on the proton will be the:
A. -y direction
B. +y direction
C. +z direction
D. -z direction
6 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
7 (CRO) Cathode ray oscilloscope is a device used for high speed
A. velocity
B. graph plotting
C. time-velocity
D. none of these
8 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
9 Lorentz force is defined as
A. q(E + V x B)
B. q(E x B + V)
C. q(E x V + B)
D. q(E x B)
10 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

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