Скачать или смотреть Exercise Solutions | Class 6 Science | Chapter 12

Electricity and Circuits exercise questions and answers

Answers to these questions are discussed in this video.
1. Fill in the blanks :
(a) A device that is used to break an electric circuit is called _______________.
(b) An electric cell has _______________ terminals.
2. Mark 'True' or 'False' for 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 thermo Col.
3. Explain why the bulb would not glow in the
arrangement shown in Fig. 12.13.

4. Complete the drawing shown in Fig 12.14 to
indicate where the free ends of the two wires
should be joined to make the bulb glow.
5. What is the purpose of using an electric switch?
Name some electrical gadgets that have switches
built into them.
6. Would the bulb glow after completing the circuit
shown in Fig. 12.14 if instead of safety pin we
use an eraser?
7. Would the bulb glow in the circuit shown in Fig. 12.15?
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.
9. Why should an electrician use rubber gloves while repairing an electric switch
at your home? Explain.
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?

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