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Two bulbs B(1) and B(2) are connected i...

Two bulbs `B_(1)` and `B_(2)` are connected in series with an source of emf 250 V as shown in the figure 15 below. The labels on the bulbs read 250 V, 80 W and 250 V, 100 W respectively.

What will be the ratio of the power consumed (P1/P2) when connected in series?

A

`5:4`

B

`4:5`

C

`1:1`

D

`5:3`

Text Solution

Verified by Experts

The correct Answer is:
B
`(P_(1))/(P_(2)) =((V_(1))/(V_(2)))^(2)(R_(2))/(R_(1)) =(4)/(5) " " [ :. R_(1):R_(2)= 5:4]`
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