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Parallel and Series Combination of Capacitors

A heater coil...

Question

A heater coil connected to a $220 V$ has a resistance of $150 o h m .$ How long will it take for this coil to heat $1 k g$ of water from $20^{0} C t o 60^{0} C,$ assuming that all heat is taken up by water $.$

A

210

sec

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B

420

sec

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C

520

sec

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D

None of these

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Solution

The correct option is C $520$ sec
Hence, option $(C)$ ids correct answer.

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