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

The magnitude of chemical Effects depends upon:

Question # 2

The current that flows through the coil of a motor causes

Question # 3

Aluminum is a:

Question # 4

In gases, the charge carriers are:

Question # 5

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

Question # 6

Electrolysis is the study of conduction of electricity through:

Question # 7

An eV is unit of:

Question # 8

Two dissimilar metals joined at their ends kept at constant temperature constitute:

Question # 9

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

Question # 10

In case of metallic conductors, the charge carriers are

Question # 11

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

Question # 12

Magnetic effect of current is used:

Question # 13

Heating effect of current utilized in:

Question # 14

The emf is measured in:

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

Electric flux is:

Question # 23

The third band of the colour code:

Question # 24

Flux through a closed surface of any shape and flux through the surface of a sphere drawn around a charge are:

Question # 25

Electric field lines emerge from the charge in:

Question # 26

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

Question # 27

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

Question # 28

Most practical applications of electricity involve

Question # 29

In a metal, the valence electrons are:

Question # 30

As the current flows through the wire

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 Magnetic effect of current is used:
A.

In electric motor

B.

To detect current

C.

To measure current

D.

All of these
2 SI unit of current describes the flow of charge at the rate of
A. One ampere per second
B. One coulomb per second
C. One electron per second
D. 6.25 x 1018electrons per second
3 As the current flows through the wire
A. It generates heat in the wire
B. It produces sound in the wire
C. Resistance of the wire decrease
D. Voltage across the ends is the increase
4 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
5 Which of the following substances has got positive temperature coefficient of resistance?
A. Carbon
B. Germanium
C. Silicon
D. Aluminium
6 When a constant potential difference is applied across the conductor, the drift velocity of electrons:
A.

Increases

B.

Decreases

C.

Remains the constant

D.

Either of these
7

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

Both the conductors are at the same potential

B.

Potential difference across the conductors remain constant

C.

Potential difference across the conductors becomes zero

D.

Both (A) and (B)
8 Tick the correct statement:
A.

Both the potential and potential difference is scalars

B.

Potential is a scalar but potential difference is a vector

C. Both are vectors

D.

Potential is vector but potential difference is scalar
9 The passage of current is accompanied by a magnetic field in the surrounding space:
A.

Always accompanied

B.

Sometimes accompanied

C.

Never accompanied

D. Any of above
10 An important part of inkjet printer is:
A. Toner
B.

Drum

C.

Deflection plates

D.

Heated roles

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