Two bulbs are marked `220 V - 100 W and 220 V - 50W`.
(i) Which bulb will produce more illumination if they are connected in parallel to a `220 V` supply?
(iii) Also find the total power consumed by both the bulbs in each of the two parts above.

Explanation

(i) The first bulb will produce more power. In parallel, the more the power rating , the more the power produced. ltb rgt (ii) The second bulb will produce more power. In series , the more the power rating , the lesser the power produced.
In the first part,
In the second part,
`P = P_(01) + P_(02) = 100 + 50 = 150 W`.
In the second part:
`P = (P_(01) P_(02))/( p_(01) + P_(02)) = ( 100 xx 50) /(150) = (100) /(3) W`