ECAT Pre General Science Physics Chapter 13 MCQ Test With Answer

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

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

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ECAT Pre General Science Physics Chapter 13 Current Electricity

00:00
Question # 1

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

Question # 2

The obvious effect/s of current is/are:

Question # 3

Tick the correct statement:

Question # 4

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

Question # 5

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

Question # 6

The charge carries in the electrolyte are:

Question # 7

Electric field lines emerge from the charge in:

Question # 8

In case of two identical charges placed certain distance apart, the electric field lines are:

Question # 9

Kirchhoff's first rule is also called:

Question # 10

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

Question # 11

As the current flows through the wire

Question # 12

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

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

Xerography means:

Question # 16

An example of photoconductor is:

Question # 17

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

Question # 18

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

Question # 19

The positive charge moving in one direction is equivalent in all external affects to a:

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

Selenium is:

Question # 24

Most practical application of electricity involve

Question # 25

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

Question # 26

A thermistor is a resistor which is:

Question # 27

Aluminum is a:

Question # 28

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

Question # 29

In gases, the charge carriers are:

Question # 30

Conversion of chemical energy to electrical energy can be achieved by:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

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

Different

B.

Same

C.

Such that it is greater in the first case

D.

Such that it is greater in the second case
2

Electrostatics is the branch of physics which deals with the study of electro charges:
A.

At rest

B.

At rest under the action of electric forces

C.

In motion under the action of electric forces

D.

In motion
3 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
4 Gaussian surface is always:
A.

Rectangular

B.

Spherical

C.

Cylindrical

D.

Box shape
5 The value of relative permittivity of different dielectrics are:
A.

Equal

B.

Different

C.

Greater than one

D.

Smaller than one
6 Field lines are closer to each other in the region where the field is:
A.

Stronger

B.

Weaker

C.

Much weaker

D.

Absent
7 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
8 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
9 Selenium is:
A.

An insulator

B.

A conductor

C.

Insulator in the dark and becomes conductor when exposed to light

D.

Conductor in the dark only
10

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

Decreasing from zero to maximum

B.

Increasing from zero to maximum

C.

Decreasing from maximum to zero

D.

Increasing from maximum to zero

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