Q5 of 20 Page 75

Which of the following precautions need not be taken while using electric gadgets/appliances/circuit?

Option (a) – This statement is correct as a lighted electric bulb is very hot and on touching it can lead to severe burn.

Option (b) – This is also a correct statement as it can lead to a serious mishap.


Option (c) – This is also a correct statement as fuse are made of a particular type of wire.


Option (d) – This is the wrong statement as if we don’t turn the switch to ON position then it is no use to us.

More from this chapter

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3

Three bulbs A, B, C are connected in a circuit as shown in Figure 14.2. When the switch is ‘ON’

 4

When a switch is in OFF position,

(i) circuit starting from the positive terminal of the cell stops at the switch.


(ii) the circuit is open.


(iii) no current flows through it.


(iv) current flows after some time.


Choose the combination of correct answer from the following.

 6

Which property of a conducting wire is utilized in making electric fuse?

 7

Name the device used these days in place of electric fuses in electrical circuits.