Fill in the blanks:
(a) Longer line in the symbol for cell representsits_________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 _________.
(a) Longer line in the symbol for cell representsits__positive__terminal.
(b) The combination of two or more cells is called a __battery__.
To make a battery, the negative terminal of one cell is connected to the positive terminal of the next cell and so on.
(c) When current is switched ‘on’ in a room heater, it __produces heat__.
Working of a room heater is based on the phenomenon of heating effect of electric current.
(d) The safety device based on the heating effect of electric current is called a __fuse__.
Fuse is a safety device, which limits current in circuit and breaks the circuit if the current exceeds its maximum limit.
