Advertisements
Advertisements
प्रश्न
Select the correct alternatives
When a bulb lights up on passing current, the change of energy is
पर्याय
from electrical energy to heat energy
from electrical energy to light energy
from electrical energy to heat and light energy
from electrical energy to mechanical energy.
Advertisements
उत्तर
from electrical energy to heat and light energy
APPEARS IN
संबंधित प्रश्न
Fill in the blank
The ability to do work is called ______
State the unit of energy and define it.
What is potential energy ? State its unit.
What is energy?
Answer the following in a word or two or in a sentence.
Write the formula for calculating the efficiency of a machine.
If the energy of a ball falling from a height of 10 metres is reduced by 40%, how high will it rebound?
We make useful objects from a variety of substances. Another use of substances is that we get energy from some of them.
There is a car. Its tank is full of fuel but it does not move. Why is that?
We make useful objects from a variety of substances. Another use of substances is that we get energy from some of them.
When we have run a long distance, we feel tired. We have to stop. Why is that?
Running water possesses ______.
Which one of the following is not the unit of energy?
