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  • Fill in the blanks: Longer line in the symbol for a cell represents its__________ terminal.

8. Fill in the blanks:

(a) 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_____________.

Answers (1)

best_answer

(a) Positive
(b) Battery 
(c) Produces heat (due to the heating effect of current)
(d) Fuse (When a large amount of current is flowing through the wire, it melts and breaks the circuit)

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