Question

The resistor becomes warm while there is a current in it. Explain why the resistor becomes warm.

Answer 1

Answer:

when the the current is flowing through the resistor . it become hot bcoz of the current flow in high frequency and it is also produce heat energy in it.....

Answer 2

Answer:

Bro it is because resistor provides resistance to current flowing through it. That means that it opposes the flow of electrons.

Now, it obstructs their way- electron's way.

due to this, the electron slows down, but wait!

If electron slows down, then where is it's energy gone( kinetic energy of electron, since it was in motion)?

Law of conservation of energy says that energy can't be created nor be destroyed.

So, that energy must appear in some other form.

And that form is heat, my friend. Yes!

And a little bit of light also, if it gets too much hot, then the red color is visible, or other color maybe, but like red, may be yellow-red in color.

So, the electron emits heat energy when it's slowed down by the resistance:)

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