An electric heater & an electric bulb are rated 500W-220V and 100W-220V respectively.Both are connected in series to a 220V mains.Calculate the power consumed by 

(a) Heater

(b) Electric bulb

Resistance of Heater and Electric bulb is,

Total resistance of the circuit = 580.8 Ω

Now, current through the circuit, I = V/R = 220/580.8 = 0.38 A

Power of the system, P = VI = 83.6 W

Voltage drop across heater and bulb,

  • 36

its given in the question

  • -6
What are you looking for?