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 emf is measured in:

Question # 2

A rheostat can e used:

Question # 3

The best conductor is:

Question # 4

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

Question # 5

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

Question # 6

An electric field is generated along the wire when:

Question # 7

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

Question # 8

A thermistor is a resistor which is:

Question # 9

As the current flow through the wire:

Question # 10

In gases, the charge carries are:

Question # 11

An inkjet printer uses in its operation:

Question # 12

In gases, the charge carriers are:

Question # 13

Electrolysis is the study of conduction of electricity through:

Question # 14

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

Question # 15

The value of resistivity is the least for:

Question # 16

The free electrons in metals:

Question # 17

Gaussian surface is always:

Question # 18

As the current flows through the wire

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

Thermistors are prepared under

Question # 23

In case of metallic conductors, the change carries are:

Question # 24

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

Question # 25

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

Question # 26

In case of metallic conductors, the charge carriers are

Question # 27

The magnitude of chemical Effects depends upon:

Question # 28

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

Question # 29

An eV is unit of:

Question # 30

The flux through a closed surface depends upon:

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 In gases, the charge carriers are:
A. Electrons
B. Positive ions
C. Negative ions
D. Both A and C
2 Most practical application of electricity involve
A.

Charges at the rest

B.

Charges in the motion

C.

Electrons at rest

D.

Atoms in motion
3

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

Its shaft to revolve

B.

Its brushes to rotate

C.

Motor to move

D.

Its shafts to rotate
4 When certain area A is held parallel to the field lines, then:
A.

No lines cross this area

B.

Maximum lines pass through this area

C.

The number of lines are between zero and maximum

D.

Both (A) and (B) correct
5

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
6 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
7 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
8 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
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

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

Straight lines

B.

Sine curves

C.

Curved

D.

Both (A) and (B)

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