Two electric bulbs whose resistances are in the ratio of 1 : 2 are connected in parallel to a constant voltage source. The powers dissipated in them have the ratio.

a
1 : 2

b
1 : 1

c
2 : 1

d
1 : 4

Question

Two electric bulbs whose resistances are in the ratio of 1 : 2 are connected in parallel to a constant voltage source. The powers dissipated in them have the ratio.

a	
     1 : 2

b	
     1 : 1

c	
     2 : 1

d	
     1 : 4

ujjwal · Answer

$$P=\frac{V^2}{R}$$ $V$ is same for both case since the bulbs are connected in parallel..