Physics
A geyser is rated '1500 W, 250 V'. This geyser is connected to 250 V mains. Calculate —
(i) the current drawn,
(ii) the energy consumed in 50 hours, and
(iii) the cost of energy consumed at ₹ 4.20 per kWh.
Related Questions
A battery of e.m.f. 15 V and internal resistance 2 Ω is connected to two resistors of resistances 4 Ω and 6 Ω joined in series. Find the electrical energy spent per minute in 6 Ω resistor.
Water in an electric kettle connected to a 220 V supply takes 5 minutes to reach it's boiling point. How long will it take if the supply voltage falls to 200 V?
An electric toaster draws current 8 A in a circuit with source of voltage 220 V. It is used for 2 h. Find the cost of operating the toaster if the cost of electrical energy is ₹ 4.50 per kWh.
An electric iron is rated 220 V, 2 kW. If the iron is used for 3h daily, find the cost of running it for 1 week if it costs ₹ 4.25 per kWh.