In a hous there are 20 lamps of 60 W each 10 fans which operate in 0.5A current . If main power supply is 220V , expense per kW h is 50 pise and each appliance runs 6 h per day then calculate the electric bill of November .

A bulb of power 40 W is used for 12.5 h each day for 30 days. Calculate the electrical energy consumed.

A house is fitted with 20lamps of 60W each, 10fans consuming 0.5A each and an electric kettie of resistance 110Omega . If the energy is supplieda at 220V and costs 75 paise per unit, calculate the monthly bill for running appliances for 6 hours a day. take 1 mont =30days.

In an evening college there are 100 bulbs of 60 W each , 80 bulbs of 100W each and 70 fans of 100 W each . They run for 5 h , 4 h and 4 h respectively per day . If each kW . H costs Rs. 0.50 , calculate the electric bill of the college for a month .

Radha's house is fitted with 2 lamps of 60W each and 2 fans consuming 0.4A each . If energy is upplied at 200V and coats Rs. 2.50 per kWh. Find the monthly bill if all the appliances run for 10 hours a day.

Radha's house is fitted with 2 lamps of 60W each and 2 fans consuming 0.4A each . If energy is upplied at 200V and coats Rs. 2.50 per kWh. Find the monthly bill if all the appliances run for 10 hours a day.

Radha's house is fitted with 2 lamps of 60W each and 2 fans consuming 0.4A each . If energy is upplied at 200V and coats Rs. 2.50 per kWh. Find the monthly bill if all the appliances run for 10 hours a day.

There are six 40 W and two 100 W lamps , four 40 W fans and a 1000 W electric heater in a house .If in April , each lamp runs for 5 hours a day , each fan 15 hours a day and the heater 2 hours a day , what will be the electric bill for that month ? It may be supposed that the main supply voltage is 200 V and cost of each BOT unit = Rs. 1.50. Which one of the give three wires of rating 5 A , 10 A and 15 A will be appeopeiate for connection in the main switch ?

A house is fitted with seven tubelights of rating 220 V, 40 W each , two bulbs of rating 220 V, 60 W each, five fans each drawing a current of 0.4 A at 220 V , and a heater of resistance 48.4 Omega . The main line power supplied to the house is at 220 V . Calculate the bill for the month of january if tubelights and bulbs are used for 6 h daily, fans for 1 h daily , and heater for 10 h daily. The electricity is to cost Rs. 2 per unit.

8 bulbs (100W,220V) for 10 hr, 2 fan(80W), 1 iron (1.5KW) for 30 min are on per day. Calculate the electric bill per month if cost of unit is 6/-.

A house is fitted with seven tubelights of rating 220 V, 40 W each , two bulbs of rating 220 V, 60 W each, five fans each drawing a current of 0.4 at 220 V , and a heater of resistance 48.4 Omega . The main line power supplied to the house is at 220 V . Calculate the bill for the month of january if tubelights and bulbs are used for 6 h daily, fans for 1 h daily , and heater for 10 h daily. The electricity is to cost Rs. 2 per unit.