Chapter 6: Electrical Circuits & Electric Currents - Science Mcqs for Grade 7

1.

Most electric bulbs have a coil of thin tungsten wire known as

A. coil

B. filament

C. spring

D. terminal

Answer & Solution Discuss in Board

2.

Voltmeter is always connected in

A. parallel

B. series

C. both a and b

D. pulleys

Answer & Solution Discuss in Board

3.

Due to change in the form of energy, the conductor gets

A. more resistance

B. less resistance

C. cold

D. hot

Answer & Solution Discuss in Board

4.

Before attempting any repair or adjusting an appliance, the power should be turned off, from

A. mains supply

B. circuit breaker

C. socket switch

D. appliance switch

Answer & Solution Discuss in Board

5.

The metal with the highest resistance is

A. silver

B. aluminum

C. sodium

D. tungsten

Answer & Solution Discuss in Board

6.

Inserting any part of human body to the socket can cause him

A. illness

B. a nasty shock

C. paralysis

D. unconsciousness

Answer & Solution Discuss in Board

7.

The heating element of electric appliances like iron, hair driers, kettles and toasters use

A. thick copper wire

B. thick nichrome wire

C. thin copper wire

D. thin nichrome wire

Answer & Solution Discuss in Board

8.

The best fit fuse for the hair drier that requires '2A' current is

A. 5A

B. 4A

C. 3A

D. 2A

Answer & Solution Discuss in Board

9.

A source that makes electrons to move is known as

A. battery

B. dam

C. turbine

D. dynamo

Answer & Solution Discuss in Board

10.

The process in which a bell keeps on repeating until the bell press is

A. pushed

B. pulled

C. released

D. hooked

Answer & Solution Discuss in Board

Practice MCQ Questions and answers on Chapter 6: Electrical Circuits & Electric Currents - Science Mcqs for Grade 7

1. Most electric bulbs have a coil of thin tungsten wire known as

Answer & Solution

2. Voltmeter is always connected in

Answer & Solution

3. Due to change in the form of energy, the conductor gets

Answer & Solution

4. Before attempting any repair or adjusting an appliance, the power should be turned off, from

Answer & Solution

5. The metal with the highest resistance is

Answer & Solution

6. Inserting any part of human body to the socket can cause him

Answer & Solution

7. The heating element of electric appliances like iron, hair driers, kettles and toasters use

Answer & Solution

8. The best fit fuse for the hair drier that requires '2A' current is

Answer & Solution

9. A source that makes electrons to move is known as

Answer & Solution

10. The process in which a bell keeps on repeating until the bell press is

Answer & Solution

Read More Section(Science Mcqs)

1.

Most electric bulbs have a coil of thin tungsten wire known as

2.

Voltmeter is always connected in

3.

Due to change in the form of energy, the conductor gets

4.

Before attempting any repair or adjusting an appliance, the power should be turned off, from

5.

The metal with the highest resistance is

6.

Inserting any part of human body to the socket can cause him

7.

The heating element of electric appliances like iron, hair driers, kettles and toasters use

8.

The best fit fuse for the hair drier that requires '2A' current is

9.

A source that makes electrons to move is known as

10.

The process in which a bell keeps on repeating until the bell press is