Three 60 W incandescent bulbs are connected in a parallel.
(a) Calculate the total power consumed.
(b) Now suppose that one of the bulbs is fused. What will be the total power consumed now?
a. Total power consumed = 180 W since in parallel combination as three bulbs are connected so wattage will be three times that of power consumed by single bulb(60 W)
b. Since one bulb is fused power consumed will be 120 W.