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

Magnetic flux passing through the an element of are A placed perpendicular to a uniform magnetic field Bis:

Question # 2

Which is modified form of galvanometer

Question # 3

Magnetic induction is also called as:

Question # 4

A beam of electrons is provided by an

Question # 5

A resistance used in galvanometer to make it voltmeter is called

Question # 6

For measuring large currents, an ordinary galvanometer cannot be used without proper, then both relates with each other as

Question # 7

In the formula B= µ̻ nl, the symbol n denotes:

Question # 8

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

Question # 9

The SI unit of flux density is

Question # 10

To convert galvanometer into ammeter we connect

Question # 11

A current carrying conductor sets up its own:

Question # 12

The working of all DC electric meters (galvanometers, ammetersand voltmeters) depends upon

Question # 13

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

Question # 14

The magnetic field outside the solenoid due to current is

Question # 15

Weber is a unit of

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 A current carrying conductor is placed at right angle to the magnetic field. The magnetic force experienced by the conductor is
A. minimum
B. maximum
C. zero
D. none of these
2 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
3 The direction of lines of force depends upon the direction of
A. voltage
B. current
C. charges
D. none of these
4 The voltage increases linearly with
A. time
B. velocity
C. acceleration
D. torque
5 In the formula B= µ̻ nl, the symbol n denotes:
A.

Total number of turns of solenoid

B.

Number of turns per unit length

C.

Number of turns per unit volume

D.

Numbers of turns per unit area
6 Magnetic flux passing through a element whose vector area makes an angle0º with lines of magnetic force is:
A. BACosѲ

B. Zero
C. BA
D. BA sinѲ
7 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
8 The permeability of free space is measured in:
A. Wb/Am
B. Wb A/m
C. Am/Wb
D. m/Web A
9 Magnetic lines of force:
A.

Cannot intersect at all

B.

Intersect at infinity

C.

Intersect within magnet

D.

Intersect at Neutral Point
10 A solenoid is a coil of wire which is:
A.

Short, loosely wound, cylindrical

B.

Long, tightly wound, spherical

C.

Long, loosely wound, cylindrical

D.

Long, tightly wound, cylindrical

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