Q- On an electric bulb is written 220V-40 W. What do they signify? Chapter: Current ElectricityView Answer
Q- A 60W electric lamp connected in series with a room heater is further connected across the mains. If 60 W lamp is now replaced by a 100W lamp, will the heat produced by the heater be smaller, remain the same or be larger and why? Chapter: Current ElectricityView Answer