Question

1. An electric heater draws 5 A of current for 10 min when connected to 230 V power supply. Find the heat energy developed. 2. A heater has a power of 1.1 kW at 220 V . (a)Find the resistance of the heater . (b) Calculate the energy in kWh consumed in a week if the heater is used daily for 4 hr. * 3. An electric motor draws a current of 5 A from a 220 V line . Determine the power of the motor and energy consumed in 2 hr. 4. An electric bulb is rated 100 W , 220 V . The resistance of the filament of the bulb when it is glowing is 5. Two bulbs are rated as 40 W , 220 V and 40 W , 110 V respectively . compare the resistance of two bulbs. 6. Four Tube lights of 40 W each , two fans of 100 W each and three bulbs of 60 W each operate on an average of 8 hr per day. If the cost of energy is 2.50 rs per kWh , calculate the monthly bill. only answer pls no working required

Answer 1

Explanation:

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Answer 2

Answer:

1. An electric heater draws 5 A of current for 10 min when connected to 230 V power supply. Find the heat energy developed. 2. A heater has a power of 1.1 kW at 220 V . (a)Find the resistance of the heater . (b) Calculate the energy in kWh consumed in a week if the heater is used daily for 4 hr. * 3. An electric motor draws a current of 5 A from a 220 V line . Determine the power of the motor and energy consumed in 2 hr. 4. An electric bulb is rated 100 W , 220 V . The resistance of the filament of the bulb when it is glowing is 5. Two bulbs are rated as 40 W , 220 V and 40 W , 110 V respectively . compare the resistance of two bulbs. 6. Four Tube lights of 40 W each , two fans of 100 W each and three bulbs of 60 W each operate on an average of 8 hr per day. If the cost of energy is 2.50 rs pe

Explanation:

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