cExams.net

Class 6 - Science

Electricity and Circuits

Q&A
Question:

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:

When we hold the wire carrying current then the circuit is closed and the current flows from our body and enters earth but the birds sitting on the same wire do not get any current as the circuit is not complete. If the bird touches the earth wire, it will also die due to electric shock.



--- >>>

Questions and Answers


Electricity and Circuits - Questions
1.

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
2.

What is solar cell?


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.

What is open circuit?


Answer
8.

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
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.


Answer
11.

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
12.

Give one activity to prove that air is an insulator.


Answer
13.

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


Answer
14.

What is dry cell?


Answer
15.

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


Answer
16.

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


Answer
17.

Name the -ve terminal of a dry cell.


Answer
18.

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
19.

Write one use of insulators.


Answer
20.

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


Answer
21.

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
22.

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


Answer
23.

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
24.

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


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.

(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
27.

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
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
  • Indira Gandhi
  • Body Mass Index
  • Male And Female Celebrities That Look Terrifyingly Similar
  • Myth about Adoption
  • BIG bucket list Adventures
  • Grammar Test

  • Precautions while using Shampoo

    Health risks

    A number of contact allergens are used as ingredients in shampoos, and contact allergy caused by shampoos is well known. Patch testing can identify ingredients to which patients are allergic, after which a physician can help the patient find a shampoo that is free of the ingredient to which they are allergic.


    Chourishi Systems