Water boils in the electric kettle in 15 minutes after switching on. If the length of heating wire is decreased to 2/3 of its initial value, then the same amount of water will boil with the same supply voltage in(a) 8 minutes(b) 10 minutes(c) 12 minutes(d) 15 minutes
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I think 12 min..but i am confuse
Anonymous:
who are you
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12 minutes
hope helps
thanks me
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