Q.8 Fill in the blanks:
(a) Longer line in the symbol for a cell represents its __________ terminal.
(b) The combination of two or more cells is called a ________ .
(c) When current is switched ‘on’ in a room heater, it ___________ .
(d) The safety device based on the heating effect of electric current is called a ___________ .


Answer :

(a) Longer line in the symbol for a cell represents its positive terminal.

(b) The combination of two or more cells is called a battery.

(c) When current is switched ‘on’ in a room heater, it produces heat .

(d) The safety device based on the heating effect of electric current is called a fuse.

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