Advertisements
Advertisements
प्रश्न
State the energy changes which take place when:
A bulb glows, when torchlight is switched on.
Advertisements
उत्तर
The chemical energy of cell changes to electric energy. The electric energy first changes to heat and finally to light energy.
संबंधित प्रश्न
State the energy change in the following device while in use:
A glowing electric bulb.
What name is given to the heat energy obtained from hot rocks inside the earth?
What is solar energy?
State whether a solar cell produces a.c. or d.c.
Explain the principle of producing electricity using the nuclear energy.
Renewable source of energy is:
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
What kind of energy is possessed in a situation when?
A cocked up spring of air gun.
State the energy changes which take place when:
In a heat engine.
Give one example when:
Kinetic energy changes to heat energy.
