NCERT science chapter 14 class 7
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1. positive 2. fuse
Explanation:
1. I its is a symbol of negative but positive symbol is long than this sin.
2.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.
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Answer:
1. Positive
2. Fuse
Explanation:
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