If two bulbs resistance

Question

If two bulbs , whose resistances are in the ratio of 1:2 are connected  in series,  the power dissipated  in them has the ratio of

A) 2:1

B) 1:4

C) 1:1

D) 1:2

Answer 1

Option (D)is correct

Explanation

As the bulbs are joined in series we use the relation

Power= I²R

I is same for both the bulb

Hence P1:P2=R1:R2=1:2