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प्रश्न
State the energy changes in the following case while in use:
An electric iron
Name the energy conversion that takes place in case of an electric iron in use.
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उत्तर
Electrical energy into heat energy.
संबंधित प्रश्न
What are the various energy transformations that occur when you are riding a bicycle?
State the energy changes in the following while in use A loudspeaker .
State the energy changes in the following while using a microphone.
State the energy changes that occur in the following :
The unwinding of a watch spring.
Energy can exist in several forms and may change from one form to another. State the energy changes that occur in a car going uphill.
State the energy changes in the following case while in use:
Microphone
State the energy changes in the following case while in use:
Washing machine
Is it possible that an object is in a state of accelerated motion due to external force acting on it, but no work is being done by the force? Explain it with an example.
If an electric iron of 1200 W is used for 30 minutes every day, find electric energy consumed in the month of April.
Define watt. Express kilowatt in terms of joule per second. A 150 kg car engine develops 500 W for each kg. What force does it exert in moving the car at a speed of 20 ms–1?
