Advertisements
Advertisements
प्रश्न
State the energy changes in the following case while in use:
Washing machine
Advertisements
उत्तर
Electrical energy to mechanical energy.
APPEARS IN
संबंधित प्रश्न
State the energy changes in the following case while in use:
An electric iron
Fill in the blank
Green plants convert _________ energy into chemical energy.
State the energy changes that occur in the following :
Lighting of a torch bulb.
State the energy changes in the following case while in use:
A solar cell
Explain conservation of energy.
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?
Can any object have mechanical energy even if its momentum is zero? Explain.
A light and a heavy object have the same momentum. Find out the ratio of their kinetic energies. Which one has larger kinetic energy?
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?
State the energy changes in the following case while in use:
A glowing electric bulb
