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Class 6 - Science

Electricity and Circuits

Q&A
Question:

What is the name of thin wire in the electric bulb?

Answer:

Filament.



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Questions and Answers


Electricity and Circuits - Questions
1.

What is solar cell?


Answer
2.

Using the"conduction tester” on an object it was found that the bulb begins to glow. Is  that object a conductor or an insulator? Explain.


Answer
3.

Mention two advantages of a dry cell.


Answer
4.

Name the +ve terminal of dry cell.


Answer
5.

Define conductors and insulators. Give one example of each.


Answer
6.

Fill in the blanks:
(a) A device that is used to break an electric circuit is called_______________
(b) An electric cell has___________


Answer
7.


Answer
8.

What is open circuit?


Answer
9.

Would the bulb glow after completing the circuit shown in Fig. 12.9 if instead of safety pin we use an eraser?


Answer
10.

The handles of the tools like screwdrivers and pliers used by electricians for repair work usually have plastic or rubber covers on them. Can you explain why?


Answer
11.

Give one activity to prove that air is an insulator.


Answer
12.

Mark ˜True' or ˜False' for the following statements:
(a) Electric current can flow through metals.
(b) Instead of metal wires, a jute string can be used to make a circuit.
(c) Electric current can pass through a sheet of thermocol.


Answer
13.

What is the name of thin wire in the electric bulb?


Answer
14.

What is dry cell?


Answer
15.

Why should an electrician use rubber gloves while repairing an electric switch at your home? Explain.


Answer
16.

Name the -ve terminal of a dry cell.


Answer
17.

Name the scientist who invented electric cell and the scientist who invented electric bulb.


Answer
18.

What is the direction of flow of current in a dry cell?


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19.

Explain why the bulb would not glow in the arrangement shown in fig
ncert-solutions-for-class-6th-science-chapter-12-electricity-and-circuits-1


Answer
20.

Write one use of insulators.


Answer
21.

Mark ˜True' or ˜False' for the following statements:
(a) Electric current can flow through metals.
(b) Instead of metal wires, a jute string can be used to make a circuit.
(c) Electric current can pass through a sheet of thermocol.


Answer
22.

If you touch an electric wire carrying current you get a shock, but if on the same wire the birds sit they do not get any shock/current. Explain why?


Answer
23.

What is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.


Answer
24.

In any electric circuit, when the switch is on and the current flows through it why do the wire, switches, bulb or devices become hot?


Answer
25.

Would the bulb glow in the circuit shown in Fig. 12.11.
ncert-solutions-for-class-6th-science-chapter-12-electricity-and-circuits-4


Answer
26.

The headlights of a car have reflectors behind the bulb. What is the function of reflectors?


Answer
27.

(1)What is electric circuit?
(2)How many types of electric circuit are there? Define them.
(3)Draw a diagram to show the closed circuit for switch, bulb and dry cell.


Answer
28.

Draw a diagram showing the two terminals of a bulb.


Answer
29.

Complete the drawing shown in Fig. 12.9 to indicate where the free ends of the two wires should be joined to make the bulb glow.
ncert-solutions-for-class-6th-science-chapter-12-electricity-and-circuits-2


Answer
30.

Draw the circuit diagram for operating a bulb with the help of a dry cell.


Answer
31.

Identify conductors and insulators from the following:Eraser, paper, matchstick, copper wire, pencil lead, polythene


Answer
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