If a geyser is rated at 1.5 kW. - 220 V, what does it mean?

If a TV set is rated as 120 W,-220V, what does it mean?

What does "Biology" means?

A geyser is rated '1500 W, 250 V'. This geyser is connected to 250 V mains. Calculate : the energy consumed in 50 hours

A geyser is rated '1500 W, 250 V'. This geyser is connected to 250 V mains. Calculate : the cost of energy consumed at ₹ 4.20 per kWh for 50 hours.

A geyser has a rating 2 kW, 240 V. What is the electrical energy consumed by it in (i) kWh, and (ii) joule if it is used for 90 minutes.

What does angiosperm mean :-

A room heater is rated 500 W, 220V . (a) Find the resistance of its coil. (b) If the supply voltage drops to 200 V , what will be the power consumed? ( c) If an electric bulb rated 100 W, 220 V is connected in series with this heater, what will be the power consumed by the heater and by the bulb when the supply is at 220 V ?

An electrical heater is rated 4 kW, 220 V. Find the cost of using this heater for 12 h, if one kWh of electrical energy cost Rs. 3.25.