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

An important part of photocopier is:

Question # 2

Electric flux is:

Question # 3

Kirchhoff's first rule is also called:

Question # 4

The emf is measured in:

Question # 5

The charge carriers in an electrolyte are

Question # 6

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

Question # 7

Xerography means:

Question # 8

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

Question # 9

In a metal, the valence electrons are:

Question # 10

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

Question # 11

Most practical application of electricity involve

Question # 12

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

Question # 13

Electric field lines emerge from the charge in:

Question # 14

In case of metallic conductors, the change carries are:

Question # 15

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

Question # 16

The charge carries in the electrolyte are:

Question # 17

If the ends of a wire are connected to a battery an electric field E will be set up at:

Question # 18

The free electrons in metals:

Question # 19

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

Question # 20

The flux through a closed surface depends upon:

Question # 21

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

Question # 22

An example of photoconductor is:

Question # 23

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

Question # 24

As the current flow through the wire:

Question # 25

Gaussian surface is always:

Question # 26

In a metal, the valence electrons are:

Question # 27

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

Question # 28

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

Question # 29

Electrolysis is the study of conduction of electricity through:

Question # 30

As the current flows through the wire

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ECAT Physics Chapter 13 Important MCQ's

Sr.# Question Answer
1 When resistance of a current carrying wire increases due to rise in temperature, the drift velocity of electrons:
A.

Decreases

B.

Increases

C.

Remains the constant

D.

Either of these
2 The quantity having the same unit as that of emf is:
A. Force
B. Energy
C. Potential
D. Current
3 The conventional current is the name given to current due to flow of:
A. Positrons
B.

Positive charges

C.

Negative charges

D.

Both (A) and (C)
4

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)
5 Kirchhoff's first rule is also called:
A. Loop rule
B. Thumb rule
C. Point rule
D. Right hand rule
6 The third band of the colour code:
A. Gives the number of zeroes
B. Is decimal multiplier
C. Gives the resistance tolerance
D. Gives the third digit
7 The fourth band is a:
A. Silver band
B. Red band
C. Gold band
D. Either A or C
8 The best conductor is:
A. Silver
B. Copper
C. Aluminimum
D. Both B and C
9

The effects of bends in a wire on its electrical resistance are:
A.

Zero

B.

Much larger

C.

Larger

D.

Smaller
10 The surface destiny of charge is defined is:
A.

Charge per volume

B.

Mass per volume

C.

Charge per area

D.

Mass per area

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