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A students boils the water in …

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A students boils the water in an electric kettle for 20 minutes after being switched on. Using the same mains supply, he wants to reduce the boiling time of water. To do so, should he increase or decrease the length of the heating element? Justify your answer. Ans.The length of the wire should be increased because length is proportional to resistance and resistance is proportional to heat then if lenght is increased then heat will ne increased automatically. Is this answer correct

Posted by Sarvesh Kumar 4 years, 11 months ago

CBSE > Class 10 > Science

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Posted by Pandey Ji 6 months, 1 week ago

CBSE > Class 10 > Science