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Question
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 as ______.
(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 a cell represents its ______ terminal.
(b) The combination of two or more cells is called as ______.
(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 ________.
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Solution
(a) positive (b) battery (c) beomes red hot and emits heat (d) fuse.
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