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Textbook Solution: Electricity and Circuits | Living Science (Ratna Sagar) for Class 6 PDF Download

Oral Questions For Formative Assessment (P - 146)

Q1:
Ans: (a) Electric cell
(b) Switch
(c) Wires

Q2:
Ans: From P to N

Q3:
Ans: No, because the circuit is broken

Oral Questions For Formative Assessment (P - 149)

Q1:
Ans: No, some liquids can conduct electricity, for example, pure water, salt solution, lime juice

Q2:
Ans: Bare wires can give us an electric shock and a coating of plastic insulates the wire.

Q3:
Ans: A car battery, cell of a mobile phone

Q4:
Ans: Solar energy

For Formative and Summative Assessment (P - 149)

Part - A

Q1:
Ans: d

Q2:
Ans: c

Q3:
Ans: d

Q4:
Ans: b

Q5:
Ans: a

Q6:
Ans: d

Q7:
Ans: c

Q8:
Ans: c

Q9:
Ans: b

Part - B

Q1:
Ans: Switch

Q2:
Ans: No

Q3:
Ans: Conductors

Q4:
Ans: Positive, negative

Q5:
Ans: True

Q6:
Ans: Electrical

Q7:
Ans: Positive

Q8:
Ans: False

Q9:
Ans: No

Q10:
Ans: True

Q11:
Ans: Fused

Q12:
Ans: No

Part - C

Q1:
Ans: The path for electric current to flow from the positive terminal of a battery to the negative terminal is known as an electric circuit.

Q2:
Ans: When the circuit allows the flow of current it is said to be complete or closed.

Q3:
Ans: Electricity cannot flow in an open circuit because the path of the current is obstructed and it can no longer flow through the wire.

Q4:
Ans: An electric cell is needed in an electric circuit to supply electricity.

Q5:
Ans: The function of the switch is to break or complete the electric circuit.

Q6:
Ans: Ordinary dry cells can supply electricity for a certain time but chargeable cells can be used again and again by charging them.

Part - D

Q1:
Ans: 
Textbook Solution: Electricity and Circuits | Living Science (Ratna Sagar) for Class 6

Q2:
Ans:  An electric circuit showing flow of electric current
Textbook Solution: Electricity and Circuits | Living Science (Ratna Sagar) for Class 6

Q3:
Ans: Conductors: (i) A substance that allows electric current to flow through it is called a conductor of electricity.
(ii) Copper, graphite, and tap water are conductors.
Insulators: (i) An insulator or non-conductor does not allow electric current to flow through it.
(ii) Plastic, rubber, and kerosene are insulators.

Q4:
Ans: No. Because aluminium is not an insulating material like plastic, but a conductor of electricity. So, aluminium foil will not prevent us from getting electric shocks while handling electric wires.

Q5:
Ans: A solar cell is a cell that directly converts solar energy into electrical energy.
Uses of solar cells: (i) Solar cells are used to give electrical power to human-made satellites in outer space.
(ii) They are also used to give power to street lights.

Q6:
Ans: Electricity is generated in power stations and brought to our houses by wires.

HOTS Questions

Q1:
Ans: No, current will not flow in the circuit because plastic is an insulator and hence, will not allow electric current to flow through it.

Q2:
Ans: Silver is more conductive, but due to its cost (more expensive than copper or aluminium) it is not used in most cases.

Q3:
Ans: Conductor because it allows electric charge to travel through it easily.

Q4:
Ans: Charges may flow through us if we are earthed (in contact with the ground). If we are standing on an insulator such as rubber slippers, we are no longer in contact with the ground, and charge can no longer flow through us.

Q5:
Ans: Inside the cell, the current flows from the negative to the positive terminal.

Q6:
Ans: In outer space, no other source of electricity is available except solar energy. So, only solar cells are used as a source of power in satellites.

The document Textbook Solution: Electricity and Circuits | Living Science (Ratna Sagar) for Class 6 is a part of the Class 6 Course Living Science (Ratna Sagar) for Class 6.
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FAQs on Textbook Solution: Electricity and Circuits - Living Science (Ratna Sagar) for Class 6

1. What is electricity and how does it flow in a circuit?
Ans. Electricity is the flow of electric charge through a conductor. In a circuit, electricity flows from the positive terminal of the battery, through the components in the circuit, and back to the negative terminal of the battery.
2. What are the different components of an electric circuit?
Ans. The main components of an electric circuit include a power source (such as a battery), conductors (such as wires), and load (such as a light bulb or motor).
3. How does a switch work in an electric circuit?
Ans. A switch is a device that can open or close a circuit. When the switch is closed, it allows electricity to flow through the circuit. When the switch is open, it breaks the circuit and stops the flow of electricity.
4. What is the difference between series and parallel circuits?
Ans. In a series circuit, all components are connected in a single loop, so the same current flows through each component. In a parallel circuit, components are connected in separate branches, so the current can flow through each component independently.
5. How can we measure the amount of electricity flowing through a circuit?
Ans. The amount of electricity flowing through a circuit is measured in amperes (A) using an ammeter. An ammeter is connected in series with the circuit to measure the current flowing through it.
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