Answer:
<h2><u>Rheostat:</u></h2>
=> Rheostat is an electric device used as a variable resistance, like the regulator of the fan. It is used to change the electric resistance in the electric circuit.
<h2><u>Principle / Rule:</u></h2>
=> Rheostat works on the principle of Ohm’s law. Ohm’s law states that current in a circuit is inversely proportional to the resistance at the given temperature.
Friction causes kinetic energy to be converted into 'thermal energy'. The answer to this question is 'thermal energy'. An example would be if something is being rubbed against another object, there is friction and thermal energy will be produced. I hope this helps you on your assignment! You're welcome.
when a chemical bonds with another chemical it creates an element that element can be a gas, liquid, solid, or a metal. depending on which chemicals bond you will get different elements
Hello,
Here is your answer:
The proper answer to your question is option A "Rutherford". Rutherford discovered the nucleus of a atom!
Your answer is A.
If you need anymore help feel free to ask me!
Hope this helps!
