Question

ort Answer Type Questions
12. Define watt. Write down an equation linking watts, volts and amperes.
13. Define watt-hour. How many joules are equal to 1 watt-hour ?
14. How much energy is consumed when a current of 5 amperes flows through the fil
heater having resistance of 100 ohms for two hours ? Express it in joules.
15. An electric bulb is connected to a 220 V power supply line. If the bulb draws a curre
power
of the bulb.
16. In which of the following cases more electrical energy is consumed per
hour?
(1) A current of 1 ampere passed through a resistance of 300 ohms.
(ii) A current of 2 amperes passed through a resistance of 100 ohms.
17. An electric kettle rated at 220 V, 2.2 kW, works for 3 hours. Find the energy cor
drawn.​

Answer 1

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Answer 2

12. when an electrical appliance consumes electrical energy at the rate of 1 joule per second it is power which is said to be as 1 WATT......

Eq 1 watt = 1 volt × 1 ampere ......

13. 1 watt hour = 3600 J

the watt hour is equal to 3600 joules . this unit is commonly used as a biling unit for energy delivered to consumers by electric utilities .........

14. Its answer is given in the attachment......

15. it's in the given attachment above.....

16.the correct option is (1)

17. its answer is in the given attachment........

Explanation:

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