What is the relation between resistance (R1 and R2) of two bulbs rated for the same voltage and having powers of 400 W and 100 W respectively?
1
R1=4R2
2
R2=4R1
3
R1=2R2
4
R2=2R1
What is the relation between resistance (R1 and R2) of two bulbs rated for the same voltage and having powers of 400 W and 100 W respectively?