Advertisements
Advertisements
प्रश्न
State the energy changes that occur in the following :
Burning coal while operating a steam engine.
Advertisements
उत्तर
Chemical energy of coal changes to heat energy of the steam. Heat energy changes into mechanical energy.
APPEARS IN
संबंधित प्रश्न
State the energy changes in the following case while in use:
An electric iron
State the energy changes in the following while in use An electric oven.
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:
a steam engine
Choose the odd one:
Avinash can run with a speed of 8 m s–1 against the frictional force of 10 N, and Kapil can move with a speed of 3 m s–1 against the frictional force of 25 N. Who is more powerful and why?
If an electric iron of 1200 W is used for 30 minutes every day, find electric energy consumed in the month of April.
