Advertisements
Advertisements
प्रश्न
Name the energy changes for each of the following cases:
dynamo
Advertisements
उत्तर
A dynamo converts mechanical energy into electrical energy
APPEARS IN
संबंधित प्रश्न
Define calorific value of a fuel.
A light mass and a heavy mass have equal momentum. Which will have more kinetic energy?
(Hint : Kinetic energy K = P2/2m where P is the momentum.)
Select the renewable and non-renewable sources of energy from the following:
Wind
What is nuclear energy?
MULTIPLE CHOICE TYPE:
The ultimate source of energy is:
(a) wood
(b) wind
(c) water
(d) sun
Show that the quantity 2K/v2 has the unit of mass, where K is the kinetic energy of the body.
State two advantages and disadvantages of using wind energy for producing electricity.
For the same kinetic energy of a body, what should be the change in its velocity if its mass is increased nine times?
Calculate the kinetic energy of a body of mass 0.1 kg. and momentum 40kg m/s.
