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 best conductor is:

Question # 2

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

Question # 3

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

Question # 4

In case of metallic conductors, the change carries are:

Question # 5

A thermistor is a resistor which is:

Question # 6

The current that flows through the coil of a motor causes

Question # 7

An important part of photocopier is:

Question # 8

Field lines are closer to each other in the region where the field is:

Question # 9

The emf is measured in:

Question # 10

Most practical applications of electricity involve

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

The third band of the colour code:

Question # 16

The strength of magnetic field at certain points around a wire depends upon:

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

In a metal, the valence electrons are:

Question # 21

The inkjet printer ejects a thin stream of:

Question # 22

A rheostat can e used:

Question # 23

In order to have a constant current through wire, the potential difference across its end should:

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

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

Question # 26

An eV is unit of:

Question # 27

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:

Question # 28

The charge carriers in an electrolyte are

Question # 29

The value of relative permittivity of different dielectrics are:

Question # 30

Magnetic effect of current is used:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1

In order to have a constant current through wire, the potential difference across its end should:
A.

Be zero

B.

Be maintained constant

C.

Goes on increasing

D.

Go on decreasing
2 A thermistor is a resistor which is:
A. Light Sensitive
B. Heat Sensitive
C. Sound Sensitive
D. All of these
3

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)
4 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
5 Kirchhoff's first rule is also called:
A. Loop rule
B. Thumb rule
C. Point rule
D. Right hand rule
6 In case of metallic conductors, the charge carriers are
A. Protons
B. Electrons
C. Antiprotons
D. Positrons
7 The positive charge moving in one direction is equivalent in all external affects to a:
A.

Negative charge is moving in the same direction

B.

Positive charge is moving in the opposite direction

C.

Negative charge moving in the opposite direction

D.

Positive charges moving in the same direction
8 The value of resistivity is the least for:
A. Copper
B. Aluminimum
C. Silver
D. Tungsten
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

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

Thermistor

B.

Thermometer

C.

Thermostat

D.

Thermocouple

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