Question

Solve this question fast plzzz​

Answer 1

Answer:

p= v^2/r

as resistance remains same. let in second case,

p* = 110×110/r

Also as given in first case

100= 220×220/r

dividing the two equations r gets cancelled

p*/100= (110×110) /(220×220) = 1/4

so

p* = 100× 1/4 = 25 watt