Electricity and Circuits Test

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Electricity and Circuits Test - 9

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Weekly Quiz Competition

Question 1
1 / -0

A material that lets electricity to pass through it is called a/an-

A
Electrical appliances

B
Electrical conductor

C
Electrical insulator

D
None of these

Solution

An electrical conductor is a substance in which electrical charge carriers, usually electrons, move easily from atom to atom with the application of voltage. Conductivity, in general, is the capacity to transmit something, such as electricity or heat. ... Copper, steel, gold, aluminum, and brass are good electric conductor.
Question 2
1 / -0

A substance that allows electricity to pass through it, is called ______

A
electrical conductor

B
electrical insulator

C
electrical semiconductor

D
None of these

Solution

Electrical conductors have free electrons in there outermost shell giving them the property of movement of electrons within the conductor structure and that movement of electrons is also called as current Hence, Electrical conductors provides easy passage to the electrons. Hence A option is correct
Question 3
1 / -0

What will happen when an electric circuit is open ?

A
Current will flow in each and every part of circuit

B
Current will not flow in any part of circuit

C
Current will flow in half part of the circuit

D
Current will be maximum in the circuit

Solution

Electric current is a flow of electric charge.But current only flows in closed paths. No current can flow if the circuit is broken, for example, when a switch is open in the circuit ,current will not flow in any part of circuit as circuit is open and there is no closed path available for charge to flow.
Question 4
1 / -0

Find the odd man out.
Copper, Aluminium, Iron, Wood, Brass.

A
Wood

B
Aluminium

C
Iron

D
Brass

Solution

Wood is a bad conductor of electricity. Rest are good conductors of
electricity.
Question 5
1 / -0

Find odd one out:
Copper, Salt water, Cotton, Human body.

A
Human body

B
Cotton

C
Salt water

D
Copper

Solution

Cotton is an insulator, rest are good conductors.
Question 6
1 / -0

Device which helps in maintaining a potential difference across a conductor is

A
A cell

B
A battery

C
Both

D
None

Solution

A cell and a battery helps in maintaining a potential difference across a conductor.
Question 7
1 / -0

Define electrical circuit.

A
Electrical circuit is a path of electrical components through which the electric current flows.

B
Electrical circuit is a closed path of electrical components through which the electric current flows.

C
Electrical circuit is a combination of components which generate electromotive force.

D
Electrical circuit is a system which stores electrical energy.

Solution

Electrical circuit is a closed path of wires and electrical components which allows a current through it on the application of potential difference between two points in the path.
Question 8
1 / -0

________are substances which do not allow electricity to pass through them.

A
Insulators

B
Conductors

C
Semi-conductors

D
None of these

Solution

The substance which do not allow electricity to pass through them are called $$insulators$$.

Answer-(A)
Question 9
1 / -0

Find odd man out
Plastic, Rubber, Glass, Silver

A
Glass

B
Rubber

C
Silver

D
Plastic

Solution

All are bad conductors (insulator) of electricity, but silver is a good conductor.
Question 10
1 / -0

Why is electrical wiring usually made from copper?

A
Because copper is shiny.

B
Because copper conducts electricity.

C
Because copper is not magnetic

D
none of these

Solution

Materials that allow an electric current to pass through them are called
conductors. Copper is a good conductor of electricity. The electrical wiring usually made from copper because copper conducts electricity.

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Re-Attempt Weekly Quiz Competition

Electricity and Circuits Test - 9

Result

Electricity and Circuits Test - 9

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SHARING IS CARING

Question 1

Electrical appliances

Electrical conductor

Electrical insulator

None of these

Solution

Question 2

electrical conductor

electrical insulator

electrical semiconductor

None of these

Solution

Question 3

Current will flow in each and every part of circuit

Current will not flow in any part of circuit

Current will flow in half part of the circuit

Current will be maximum in the circuit

Solution

Question 4

Wood

Aluminium

Iron

Brass

Solution

Question 5

Human body

Cotton

Salt water

Copper

Solution

Question 6

A cell

A battery

Both

None

Solution

Question 7

Electrical circuit is a path of electrical components through which the electric current flows.

Electrical circuit is a closed path of electrical components through which the electric current flows.

Electrical circuit is a combination of components which generate electromotive force.

Electrical circuit is a system which stores electrical energy.

Solution

Question 8

Insulators

Conductors

Semi-conductors

None of these

Solution

Question 9

Glass

Rubber

Silver

Plastic

Solution

Question 10

Because copper is shiny.

Because copper conducts electricity.

Because copper is not magnetic

none of these

Solution

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