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A house is fitted with 20lamps of 60W ea...

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.

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A house is fitted with 20 length of 60 watt each 10 fans consuming 0.5 ampere each an electric kettle of resistance 110 Omega . If the energy is supplied at 120 V and costs 150 paise kWh , calculate monthly bill for running these appliances for 6 hours a day (1 length = 30 days).

A house is fitted with 10 lamps rated 100W each, four fans each containing 0.5A. An electric kettle of resistance 100 Omega and an electric iron of 12Omega . If the energy is supplied at 200V and costs 50paise per kWh, calculate the bill for running the appliances four hours in a day for the month of February.

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.

A house if fitted with a motor of 1 H.P., 5 lamps consuming 0.2 A each and two fans of 80W each. If all the appliances work for 5 hours per day, calculate the montly bill. Energy is supplied at 220V and costs 20 paise per kWh. Take one month=30 days.

Two bulbs of 100 W each and two coolers of 250 W each, work on an average 6 hours a day. If the energy costs Rs. 1.75 per kWh , calculate the monthly bill and the minimum fuse rating when power is supplied at 250 V .

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.

An electric appliance rated 400 W is used 5 hours per day in the month o June. If the cost of a unit is ₹3.00 , find the energy bill for June.

In a hostel, 160bulb, of resistance 1200Omega eachar lighhted on a 220V supply every day from 6.P.M to 11.P.M. If the electrical energy costs 25paise per kilowatt hour, find the cost of lighting the hostel for a mont of 30days.

In a house there are ten 60-watt lamps. Three 40-watt flourorescent tubes and three 40-watt fans. When all these are switched on what is the current drawn from the mains if the supply voltage is 220V? Calculate the power drawn and the cost for using them for 6hours daily in a month of 30 days.( 1 B.O.T. unit costs 30 pasise).

SL ARORA-HEATING EFFECT OF CURRENT-All Questions
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  2. A 2H.P. electric motor working on 220V mains runs for 6hours a day. If...

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  3. A house is fitted with 20lamps of 60W each, 10fans consuming 0.5A each...

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  4. There are two electric bulbs rated 60W. 110V and 100W, 110V. They are ...

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  5. Twenty one electric bulbs are connected in series with the mains of a ...

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  6. Find the resistance of 240 V - 200 watt electric bulb when glowing. If...

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  7. A thin metallic wire of resistance 100Omega is immersed in a calorimet...

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  8. A copper electric kettle weighing 1000 g contains 900g of water at 20^...

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  9. A coil of enamelled copper wire of resistance 50Omega is embedded in a...

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  10. The heater coil of an elecric kettle is rated at 2000W,200V, How much ...

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  11. A heating coil is connected in series with a resistance r. the coil is...

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  12. A 10V battery of negligible internal resistance is charged by a 200V d...

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  13. A dry cell of emf 1.6V and internal resistance 0.10 ohm is connected ...

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  14. A dry cell of emf 1.5V and internal resistance 0.10 Omega is connecte...

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  15. A series battery of 10 lead accumulators each of emf 2V and internal r...

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  16. A series battery of 6 lead accumulators each of emf 2.0V and internal ...

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  17. Power from a 64 V d.c. supply goes to charge a battery of 8lead accumu...

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  18. A battery of emf epsilon and internal resistance r is connected across...

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  19. A 24 V battery of internal resistance 4.0 Omega is connected to a vari...

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  20. (a) An electric motor runs on a d.c. source of emf e and internal resi...

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