Answer:
Diode is reverse biased when its negative us connected with positive terminal and positive is connected with negative terminal
Step-by-step explanation:
A diode is reverse biased when the positive side of the diode is connected with the negative terminal of the voltage source
And negative side of he diode is connected with positive terminal of the diode
When diode is reverse bias there is no flow of current, as it makes barrier to the flow of current