I was just thinking about diodes recently and I came across this video
https://youtu.be/bXEyCf1P0UU?t=35 Minute 0:32
He says the power disspitated by the diode will be the forward voltage drop Vf (0.7V usually) times the current through it. Now, that's my confusion. Why would the power drop only be 0.7V times the current. I mean if I applied 2V across it, it should be 2V*current not 0.7V right?
I thought the 0.7V=Vf is the minimum voltage across it we need (with correct polarity) for it to start conducting,