The temperature of an elactric bulb changes from 2000K to 3000Kdue to a.c. voltage fluctuations. Calculate the percentage rise in electric power consumed ?

The temperature of an elactric bulb changes from 2000K to 3000Kdue to

1.	The temperature of an elactric bulb changes from 2000K to 3000Kdue to a.c. voltage fluctuations. Calculate the percentage rise in electric power consumed ?
Answer» <P> Solution :`P SIGMA T^(4), "percantage rise" =(P_(2)-P_(1))xx100//P_(1)=(T_(2)^(4)-T_(1)^(4))xx100//T_(1)^(4)=406%`