Question

two bulb rated as 25w 220v and 100w,220v are connected in series in 220v line the power consumed by them.? <br /><br />options <br /><br />a) 16w , 4w<br />b) 64w , 16w<br />c) 36w , 9w<br />d) 128w , 32w​

Answer 1

Answer:

Explanation:s w = vi,  25 = 220*current

current = 25/220 for p1

for p2

current = 100/220

r = v/i

resistance for p1 = 2202 / 25 and for p2 = 2202 / 100

now claculate the net resistance in the circuit and then calculate the current required

calculate the voltage drop on each of the bulbs p1 and p2 and then multiply it with the current

You will get the answer – power for p1 = 16w and power for p2 = 4w