ECAT Pre Engineering Physics Chapter 13 MCQ Test With Answer

MCQ's Test For Physics ECAT Pre Engineering Chapter 13 Current Electricity

Try The MCQ's Test For Physics ECAT Pre Engineering Chapter 13 Current Electricity

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Physics ECAT Pre Engineering Chapter 13 Current Electricity

00:00
Question # 1

Most practical applications of electricity involve

Question # 2

The device which can convert heat energy into electrical energy is called:

Question # 3

As the current flows through the wire

Question # 4

In a metal, the valence electrons are:

Question # 5

Heating effect of current utilized in:

Question # 6

An important part of inkjet printer is:

Question # 7

When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:

Question # 8

Thermistors are prepared under

Question # 9

The conventional current is the name given to current due to flow of

Question # 10

The quantity having the same unit as that of emf is:

Question # 11

The passage of current is accompanied by a magnetic field in the surrounding space:

Question # 12

The earth’s potential and potential at infinity are taken:

Question # 13

An eV is unit of:

Question # 14

The free electrons in metals:

Question # 15

Which of the following substances has got positive temperature coefficient of resistance?

Question # 16

An example of photoconductor is:

Question # 17

The interior of a hollow charged metal sphere is a region which:

Question # 18

When two spherical conducting balls at different potentials are joined by metallic wire, the current starts:

Question # 19

The conventional current is the name given to current due to flow of:

Question # 20

In gases, the charge carries are:

Question # 21

The third band of the colour code:

Question # 22

An ideal voltmeter has:

Question # 23

A current of 1 ampere is passing through a conductor. The charge passing through it in half a minute s

Question # 24

A rheostat can e used:

Question # 25

Xerography means:

Question # 26

The number of field lines passing through unit area held perpendicular to the field lines represent:

Question # 27

The example/s of non-electrical energy to electrical is/are:

Question # 28

When a constant potential difference is applied across the conductor, the drift velocity of electrons:

Question # 29

Electric flux is:

Question # 30

Which instrument is expensive and difficult to use?

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

While finding the electric intensity at a point between two oppositely charged parallel plates, the Gaussian surface is taken in the form of a hollow:
A.

Circle

B.

Rectangle

C.

Sphere

D.

Box
2 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
3 Another mean of electric potential energy per unit charge is given by:
A.

Electric intensity

B.

Potential gradient

C.

Electric Flux

D.

Potential difference
4 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
5

Heating effect of current utilized in:
A.

Electric motor

B.

Electric toaster

C.

Electroplating

D.

Electric kettle
6 An eV is unit of:
A.

Potential

B.

Energy

C.

Work

D.

Power
7

The effects of bends in a wire on its electrical resistance are:
A.

Zero

B.

Much larger

C.

Larger

D.

Smaller
8 Static electricity is produced by the transfer of:
A.

Electrons

B.

Protons

C.

One fluid

D.

Two fluids
9

Certain charge +q is placed at the center of a sphere. At each of the sphere,The directions of electric intensity and vector area are:
A.

Same

B.

Different

C.

Opposite to each other

D.

At 60º with each other
10 Electric field lines emerge from the charge in:
A.

One dimension

B.

Two dimensions

C.

Three dimensions

D.

Four dimensions

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