Does the green LED emit light when you connect the banana plug wires across it? What does that say about the threshold voltage of the green LED compared to the blue LED?

Yes.

Explanation:

-This is because the threshold voltage for the green light is much lower than that of the blue light.

-A longer wavelength in the greenlight necesitates the need for a lower voltage in the banana plug.

i need the answer to this too but idk it ; -;

hello there!

your answer is a “generator”

a generator does not create energy but instead it transforms it.

it’s basically a motor working in reverse.