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CBSE Class 12-science Answered

its a numerical
Asked by | 29 May, 2008, 11:54: AM
Expert Answer

Find resistance of the bulb using P=V2/R.

This will not change when voltage drops to 100V.

Then find I2Rt where change time in minutes to seconds.

Answered by | 29 May, 2008, 03:26: PM
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