Question

Which of the following bulbs connected in parallel consumes more power with the wattages given?

• A. 4 bulbs of 60 W each.
• B. 5 bulbs of 40 W each
• C. 3 bulbs of 50 W each
• D. 7 bulbs of 25 W each

Answer 1

The correct option is A 4 bulbs of 60 W each.

Total power consumed is just the sum of powers consumed by individual bulbs. Hence, power consumed in the given cases is given by:

(a) $4\times 60=240W$

(b) $5\times 40=200W$

(c) $3\times 50=150W$

(d) $7\times 25=175W$

Clearly, the power consumed in case (a) i.e. 4 bulbs of 60 W each is the highest.