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Question
Fill in the blanks
(a) Longer line in the symbols of an electric 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) ________ is a safety device based on the heating effect of electric current.
(a) Longer line in the symbols of an electric 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) ________ is a safety device based on the heating effect of electric current.
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Solution
(a) positive (b) battery (c) becomes red hot and emits heat (d) fuse.
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