Advertisements
Advertisements
प्रश्न
Name the device or machine which convert :
Electrical energy into sound energy.
Advertisements
उत्तर
A speaker in radio and television converts electrical energy into sound energy.
APPEARS IN
संबंधित प्रश्न
What type of energy is possessed : by the stretched rubber strings of a catapult?
What are the various forms of energy?
Name the device or machine which convert :
Chemical energy into heat energy.
How much electrical energy in joules does a 100 watt lamp consume : in 1 second?
Write the energy transformations which take place in an electric bulb (or electric lamp).
A bulb lights up when connected to a battery. State the energy change which takes place :
Name the energy transfers which occur when :
an electric ball rings
A ball falls to the ground as shown below :
What is the kinetic energy of ball when it hits the ground?
A microphone converts :
A girl with having a mass of 35 kg sits on a trolley of mass 5 kg. The trolley is given an initial velocity of 4 m s–1 by applying a force. The trolley comes to rest after traversing a distance of 16 m. (a) How much work is done on the trolley? (b) How much work is done by the girl?
