# Class 6 Science Chapter 12 Electricity and Circuits - Learn Hool

NCERT Solutions for Class 6 Science Chapter 12 Electricity and Circuits are part of NCERT Solutions for Class 6 Science. Here we have given NCERT Solutions for Class 6 Science Chapter 12 Electricity and Circuits.

 Board CBSE Textbook NCERT Class Class 6 Subject Science Chapter Chapter 12 Chapter Name Electricity and Circuits Number of Questions Solved 10 Category NCERT Solutions

## NCERT Solutions for Class 6 Science Chapter 12 Electricity and Circuits

NCERT TEXTBOOK EXERCISES
(Pages 123-124)

Question 1.
Fill up the blanks:

(a) A device that is used to break an electric circuit is called _______.
switch

(b) An electric cell has _______ terminals.
Two

Question 2.
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.
(a) True
(b) False
(c) False.

Question 3.
Explain why the bulb would not glow in the arrangement shown in Fig. 12.7.

The bulb does not light up in the arrangement because the circuit is not complete.

Question 4.
Complete the drawing shown in Fig. 12.4 to indicate where the free ends of the two wires should be joined to make the bulb glow.

Question 5.
What is the purpose of using an electric switch? Name some electrical gadgets that have switches built into them.
Electric switches are used to stop or start the flow of current. Electric gadgets having switches built into them are heaters, geysers, televisions, mixi, electric bells, fans, cooler, air conditioners, microwave ovens, etc.

Question 6.
Would the bulb glow after completing the circuit shown in Fig. 12.8, if instead of a safety pin we use an eraser?
Yes, the bulb will light up after completing the circuit. No, the bulb will not glow if we use an eraser instead of safety pins.

Question 7.
Would the bulb glow in the circuit shown in Fig 12.9?

In this circuit, the bulb is connected through a woolen thread with the negative terminal of the electrical cell. Since the woolen thread is not a conductor of electricity, it will not allow the electricity to flow through it that is from bulb to electrical cell. Thus the circuit remains incomplete and hence the bulb will not light up.

Question 8.
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.
The material of that object is a conductor as the bulb light up. It means that circuit is complete.

Question 9.
Why should an electrician use rubber gloves while repairing an electric switch at your home? Explain.