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

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

Question # 2

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

Question # 3

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

Question # 4

When some compass needles are placed on a card board along a circle with the center at the wire, they will

Question # 5

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

Question # 6

When the charged particle is projected at right angles to the field, then experienced by it will be:

Question # 7

For the conversion of galvanometer into voltmeter, we connect a

Question # 8

Gauss(G) is smaller unit of magnetic induction which is related to tesla(T) as

Question # 9

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

Question # 10

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

Question # 11

The SI unit of magnetic flux is.

Question # 12

The pointer of a magnetic compass:

Question # 13

To convert galvanometer into ammeter we connect

Question # 14

Lorentz force is defined as

Question # 15

The magnetic field inside a solenoid can be increased by:

Question # 16

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

Question # 17

Magnetic flux and flux density are related by

Question # 18

Magnetic induction is also called as:

Question # 19

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

Question # 20

The unit of magnetic flux is

Question # 21

Tesla is the unit of

Question # 22

Method "lamp and scale arrangement" used to measure the

Question # 23

A galvanometer is an instrument used to

Question # 24

Resistance is measured in

Question # 25

The torque per unit twist of coil is called

Question # 26

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 # 27

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

Question # 28

If the number of turns of a solenoid (carrying a steady current I) is doubled without changing the length of a solenoid, then magnetic field:

Question # 29

Ammeter is used to measure

Question # 30

Current is measured in

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ECAT Physics Chapter 14 Important MCQ's

Sr.# Question Answer
1 The force experienced by charged particle is maximum, if it moves
A. parallel to magnetic field
B. perpendicular to magnetic field
C. opposite to the magnetic field
D. none of these
2 Weber is a unit of
A. magnetic flux
B. magnetic filed intensity
C. magnetic induction
D. magnetic flux density
3 The angle of deflection of coil can be measured by the
A. one method
B. three method
C. two method
D. none of these
4 NmA-1 is commonly called:
A. Weber
B. Apmere
C. Guass
D. Coulomb
5 A resistance used in voltmeter is called
A. shunt resistance
B. high resistance
C. low resistance
D. zero resistance
6 A shunt resistance parallel to the galvanometer is used to convert it into
A. avometer
B. millimeter
C. voltmeter
D. none of these
7 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
8 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
9 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
10 Which is modified form of galvanometer
A. potentiometer
B. battery
C. voltmeter
D. slide wire bridge

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