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/-.

In a house 8 nos of 60 watt bulb runs for 10 hrs and a 1.5 kw electric iron runs for 15 mins. What is the amount of electric consumed. Cost of 1 unit electric is Rs. 6.

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 ?

In house, 4Nos. Of 60W, 2 Nos. of 100W bulb and 2 Nos. of 40W Fan runs 5 hours daily. What will be its monthly electrical expenditure is one unit is cost Rs.6?

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 .

If 10 bulbs of 40 each and 3 of 100w each run on the average for 5 hours a day, calculater the monthly bill.1 bot unit costs Rs2. (1 month = 30 d)

In a large building there are 15 bulbs of 40 W , 5 bulbs of 100 W , 5 fans of 80 W and 1 kW . The voltage of the electric mains is 220 V . The minimum capacity of the main fuse of the building will be

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 house is fiited with 2 lamps rated 60 w , 2 lamps rated 100 W each 3 fans rated 40 W each . If all the appliances run simultaneously by 200 V supply voltage , determine the magnitude of current that will be drawn from the mains . If each lamp works 5 h and each fan 15 H daily , calculate the monthly expenditure . ( 1 month = 30 d , cost of 1 BOT unit Rs . 2 )

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-