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Two electric bulbs marked 40 W, 220 V and 60 W, 220 V when connected in series, across same voltage supply of 220 V, the effective power is  and when connected in parallel the effective power is . Then  is

a)

0.5

b)

0.48

c)

0.24

d)

0.16


Question ID - 151008 | Toppr Answer

Two electric bulbs marked 40 W, 220 V and 60 W, 220 V when connected in series, across same voltage supply of 220 V, the effective power is  and when connected in parallel the effective power is . Then  is

a)

0.5

b)

0.48

c)

0.24

d)

0.16

1 Answer - 5876 Votes

3537

Answer Key : (c) -

(c)

Resistance of a bulb

When the bulbs are connected in series,

When the bulbs are connected in parallel



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