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

1.

When the switch is turned off, the iron bar

A. holds its magnetism

B. loses its magnetism

C. gains current

D. gains voltage

Answer & Solution Discuss in Board

2.

Charges in an atom are

A. positive only

B. negative only

C. neutral

D. both positive and negative

Answer & Solution Discuss in Board

3.

In our daily life, we find most of the compounds contain

A. sodium

B. chlorine

C. oxygen

D. hydrogen

Answer & Solution Discuss in Board

4.

A current carrying conductor has a

A. magnetic field

B. current capacity

C. voltage capacity

D. resistance capacity

Answer & Solution Discuss in Board

5.

The more the resistors to a circuit, the

A. lower the resistance

B. higher the resistance

C. same the resistance

D. resistance may vary

Answer & Solution Discuss in Board

6.

Electrolysis is also used to purify

A. sodium

B. copper

C. silver

D. potassium

Answer & Solution Discuss in Board

7.

The electrolyte used in the purification of copper is

A. copper nitrate

B. copper chloride

C. copper sulphate

D. copper carbonate

Answer & Solution Discuss in Board

8.

The strength of electromagnet can be increased by introducing a soft iron core

A. outside the coil

B. inside the coil

C. round the coil

D. above the coil

Answer & Solution Discuss in Board

9.

For current to flow, the circuit should be

A. parallel

B. in series

C. complete

D. hot

Answer & Solution Discuss in Board

10.

Electric companies charge for

A. energy

B. power

C. resistance

D. units

Answer & Solution Discuss in Board

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

1. When the switch is turned off, the iron bar

Answer & Solution

2. Charges in an atom are

Answer & Solution

3. In our daily life, we find most of the compounds contain

Answer & Solution

4. A current carrying conductor has a

Answer & Solution

5. The more the resistors to a circuit, the

Answer & Solution

6. Electrolysis is also used to purify

Answer & Solution

7. The electrolyte used in the purification of copper is

Answer & Solution

8. The strength of electromagnet can be increased by introducing a soft iron core

Answer & Solution

9. For current to flow, the circuit should be

Answer & Solution

10. Electric companies charge for

Answer & Solution

Read More Section(Science Mcqs)

1.

When the switch is turned off, the iron bar

2.

Charges in an atom are

3.

In our daily life, we find most of the compounds contain

4.

A current carrying conductor has a

5.

The more the resistors to a circuit, the

6.

Electrolysis is also used to purify

7.

The electrolyte used in the purification of copper is

8.

The strength of electromagnet can be increased by introducing a soft iron core

9.

For current to flow, the circuit should be

10.

Electric companies charge for