Advertisements
Advertisements
प्रश्न
Define the term efficiency of a machine.
उत्तर
The ratio of the work done by the machine to the work done on the machine is called the efficiency of a machine
Efficiency =`"Output energy"/" Input energy"`
(Work done by a machine is called the output energy and the work done on a machine is called the input energy.)
APPEARS IN
संबंधित प्रश्न
Write true or false of the following statement.
A gum bottle lying on a table has no energy.
Write true or false of the following statement.
One form of energy cannot be converted into another form.
Fill in the blank
An electric fan converts electrical energy into ______ energy.
Select the correct alternatives
The correct statement is
What is energy?
Answer the following in short.
What do you understand by the term efficiency of a machine’?
What is the common name of '1 kWh' of electrical energy?
A certain household consumes 650 units of electricity in a month. How much is this electricity in joules?
The capacity that an object has for doing work is called ______.
When a body falls freely towards the earth, then its total energy
