Advertisements
Advertisements
Question
The device which converts mechanical energy into energy which runs our microwave oven is :
Options
electric motor
alternator
turbine
electric heater
Solution
Alternator is the device that converts mechanical energy into energy, which runs in microwave oven.
Therefore the answer is, (b) Alternator.
APPEARS IN
RELATED QUESTIONS
State the condition under which the mechanical energy is conserved.
A body falls freely under gravity from rest. Name the kind of energy it will possess while falling.
A ball of mass 0.20 kg is thrown vertically upwards with an initial velocity of 20 m s-1. Calculate the maximum potential energy it gains as it goes up.
State whether the object possess kinetic energy, potential energy, or both :
A stretched spring lying on the ground ____________.
What type of energy is possessed : by the piece of stone which is thrown away on releasing the stretched rubber strings of catapult?
Name the device or machine which convert :
Chemical energy into kinetic energy (or mechanical energy).
What kind of energy transformation take place at a hydroelectric power station?
How much electrical energy in joules does a 100 watt lamp consume : in 1 second?
Describe the energy changes which take place in a radio.
Explain the transformation of energy in the following cases :
(i) A ball thrown upwards.
(ii) A stone dropped from the roof of a building.