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

A thermistor is a resistor which is:

Question # 2

The electric flux through any surface depends upon:

Question # 3

The best conductor is:

Question # 4

Thermistors are prepared under

Question # 5

The obvious effect/s of current is/are:

Question # 6

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

Question # 7

An eV is unit of:

Question # 8

Electric flux is:

Question # 9

An inkjet printer uses in its operation:

Question # 10

Magnetic effect of current is used:

Question # 11

Kirchhoff's first rule is also called:

Question # 12

An ideal voltmeter has:

Question # 13

The inkjet printer ejects a thin stream of:

Question # 14

When two spherical conducting balls at different potentials are joined by a metallic wire, after some time:

Question # 15

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

Question # 16

As the current flow through the wire:

Question # 17

An important part of inkjet printer is:

Question # 18

Xerography means:

Question # 19

Electrolysis is the study of conduction of electricity through:

Question # 20

The current that flows through the coil of a motor causes:

Question # 21

Most practical application of electricity involve

Question # 22

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:

Question # 23

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

Question # 24

When two spherical conducting balls at different potentials are joined by a metallic wire, after some time:

Question # 25

SI unit of current describes the flow of charge at the rate of

Question # 26

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

Question # 27

Electric field lines emerge from the charge in:

Question # 28

When certain area A is held parallel to the field lines, then:

Question # 29

Selenium is:

Question # 30

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:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

The rate at which the free electrons pass through any section of a metallic wire from right to left is:
A.

Greater than the speed at which they pass from left to right

B.

Less than the speed at which they pass from left to right

C.

The same speed at which they pass from left to right

D.

Any of above
2 As the current flow through the wire:
A.

It generates heat in the wire

B.

It produces sound in the wire

C.

Resistance of the wire decreases

D.

Voltage across the ends is increased
3 The charge carriers in an electrolyte are
A. Positive ions
B. Negative ions
C. Either A or B
D. Both A and B
4

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
5

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

One coulomb

B.

0.5 coulomb

C.

30 coulomb

D.

2 coulombs
6 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
7 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent
8 The term drift velocity is used when the ends of a wire are:
A.

Connected to a laser source

B.

Connected to a voltage source

C.

Not connected to a voltage source

D.

At different values of potential
9 Which instrument is expensive and difficult to use?
A. Voltmeter
B. Potentiometer
C. CRO
D. Both A and C
10 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C

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