NCERT Solutions for Class 6 Science Chapter 12 Electricity and Circuits

Last Updated: September 4, 2024Categories: NCERT Solutions

Electricity And Circuits Class 6 NCERT Solutions

NCERT Solutions For Class 6 Science Chapter 12 Electricity And Circuits are provided below to help students learn all the important concepts discussed in the chapter. The solutions of all the questions of the textbook exercise are explained in detail. Students can use the given solutions to prepare their notes for last minute revisions. The Class 6 Science Electricity and Circuits NCERT solutions contain MCQ based, very short type answer questions and short type answer questions. Students can scroll below to access all the answers of Class 6 Science Electricity And Circuits.

NCERT Solutions for Class 6 Electricity And Circuits

MCQs Based Questions

1. An electric cell has _____________ terminals.

a) 1 b) 2 c) 3 d) 4

Ans: Option – b.

2. An electric cell has a

a) Positive and negative terminal

b) Two positive terminals

c) Two negative terminals

d) None of the above

Ans: Option – a.

3. An electric cell

a) Uses electricity

b) Uses light

c) Produces electricity

d) None of the above

Ans: Option – c.

4. An electric cell uses ___________ to produce electricity.

a) Electricity

b) Heat

c) Light

d) Chemicals

Ans: Option – c.

5. An electric cell does not produce electricity when

a) Chemicals inside get completely used up

b) The terminals are not connected properly

c) Both of the above

d) None of the above

Ans: Option – c.

Short Answer Questions

1. How does a light bulb produce light?

Ans: A thin wire like structure known as filament is present inside the bulb. When we switch on the bulb, electricity passes through filament causing it to heat up and glow to produce light. In this process the electric energy changes into light energy.

2. What is an electric circuit?

Ans: The closed path in which electric current flows is called an electric circuit. Generally, an electric circuit consists of wire, battery, switch and an appliance which needs electricity to work. The current in the electric circuit flows from the positive terminal to the negative terminal. The switch is used to break the flow of the current when the appliance is not in use.

3. How does a bulb fuse?

Ans: Inside the bulb there is a thin wire like structure called filament. Filament is made of substances having a low melting point. Filament gets heated and emits light when we switch on the bulb. But when there is excess flow of current through the filament it melts down due to excessive heat. This causes fusing of the bulb.

4. Explain the role of a switch in a circuit. What is it made up of?

Ans: An electric switch is a circuit component that can be used to control the flow of electricity through the circuit. It has the ability to both complete and break the circuit. A conducting substance is used to make the switch. The circuit is complete and power flows through it when the switch is in the “ON” position. The circuit is broken and power cannot flow through it while the switch is in the “OFF” position.

5. Label the parts in the following diagram. Indicate the positive and negative terminals.

Inside view of torch

Ans:

Inside view of torch parts

Electricity And Circuits Class 6 Long Answer Questions

1. Differentiate between conductors and insulators.

Ans: The differences between conductors and insulators are as follows:

Conductors Insulators
  • Materials that allow the flow of electricity.
  • Materials that make it difficult/impossible for electricity to flow freely.
  • It is used in the construction and completion of circuits.
  • It’s used to break circuits.
  • It’s a type of wire that’s used in electric wiring.
  • Switchboards, handles, and the casing of electrical equipment are all made of this material.
  • E.g. Metals, salt solution, and so on.
  • E.g. Rubber, plastic, wood, and other materials.

2. In the following diagram explain whether the bulb will glow in each of the cases.

Bulb Circuits

Ans:
a) The bulb will glow as the circuit is complete.

b) The bulb will not glow as the circuit is incomplete.

c) The bulb will not glow as the circuit is incomplete.

d) The bulb will not glow as both wires are connected only to the negative terminal of the cell.

e) The bulb will not glow as both wires from the bulb are connected only to the positive terminal of the cell.

f) The bulb will glow as the circuit is complete.

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