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2. It means this bulb can work at 220 volt and the power consumed is 100 watt.
3. The rating of an electrical appliance indicates the voltage at which the appliance is designed to work and the current consumption at that voltage. These figures are usually displayed on a rating plate attached to the appliance, e.g. 230 volts, 3 amperes.
4. The basic unit of electricity is the Kilowatt hour (kWh). In simple terms, 1 kWh is the amount of energy used by a 1kW (1000 watt) electric heater for 1 hour. Another example is ten 100-watt light bulbs used for 1 hour.
5. Electrical Energy = Power x Time. The total amount of electrical energy used depends on the total power used by all your electrical devices and the total time they are used in your home. One kilowatt hour is equal to 1000 watts of power used for one hour of time.
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Teachers’ Day is celebrated on 5th September. It is the birthday of Dr. Sarvepalli Radhakrishnan. He was the second President of India and a great teacher also. On Teachers’ Day we pay respect to him as well as other teachers. We thank our teachers for the role they play in our lives.
Teachers are our educators; showing us the way to a meaningful future. Without them, we would not be able to succeed. Teachers’ Day is widely celebrated in schools by children. They give gifts to their teachers as a mark of respect. They also perform plays and give speeches to their teachers.