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प्रश्न
Name the device or machine which convert :
Electrical energy into heat energy.
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उत्तर
An electric iron converts electrical energy into heat energy.
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संबंधित प्रश्न
A ball is placed on a compressed spring. What form of energy does the spring possess? On releasing the spring, the ball flies away. Give a reason.
A body falls freely under gravity from rest. Name the kind of energy it will possess while falling.
A metal ball of mass 2 kg is allowed to fall freely from rest from a height of 5 m above the ground. Taking g = 10 m s−2, calculate:
- the potential energy possessed by the ball when it is initially at rest.
- the kinetic energy of the ball just before it hits the ground?
What type of energy is possessed : by the stretched rubber strings of a catapult?
Name the device or machine which convert :
Chemical energy into electrical energy.
Name the device or machine which convert :
Chemical energy into heat energy.
Fill in the blanks with suitable words :
The principle of ___________ of energy says energy can be transformed from one form to another, but it cannot be ___________ or ___________.
Name the energy transfers which occur when :
an electric ball rings
Name the energy transfers which occur when : a torch is on
A microphone converts :
