How much quantity of electrical energy consumed when a 1000 watt bulb runs for 1 hour?

An electric iron which has a resistance of 80 Omega is used on 200V source. Calculate the electric energy consumed in kilowatt hour if it is used for 2 hours-

How much quantity of heat will be evolved when 10 amp electric current is passed through a 30Omega resistance for 5 minutes?

A house is fitted with 10 lamp rated 40w each, 5 fans rated 80 W each and a TV rated 80 W . If all the appliances work for 6 hours per day , how much electrical energy is consumed in a month ? What is its value in BOT unit ? (1month = 30 d )

How much quantity of CO_2 will be evoluted when 500 gm limestone is heated?

How much quantity of ethylene glycol is added in 200 gm water to reduce the freezing point by 0.93K? Kf=1.86K. Kg mol^(-1)

A heating coil of resistance 100Omega is connected for 30 min to 220 V . By this time determine (i) amount of charge flowing ( ii) amount of electrical energy consumed (iii) amount of heat greanerted .Determine the cost of consumed electrical energy if 1 kW . h costs R.s 1 .

How much quantity of water will be produced when electric spark is made in a mixture of 20 gm H_2 and 200 gm O_2 ? State the composition of products obtained.

How much quantity of oxygen will be obtained when 24.5 gm potassium chlorate is heated? [K = 39 k, Cl = 35.5, O = 16]

An electric bulb of resistance 440 ohm is connected to 220 volt mains for 10 hours. Find the amount of electrical energy consumed in BOT unit.

In a school there are 10 electric fans each of 40 W runs for 5 hours a day, 5 electric lamps each of 60 W runs for 3 hour daily. If the cost of each unit of electricity be Rs. 5, then calculate the monthly cost for electricity