Question

nonline
Why
diode is known as lon linear device
explain with graph &​

Answer 1

Answer:

Diode is a Non Linear Device. ... A linear device is that whose output is directly propostional to input. In case of diode, output (i.e current) is not directly propostional to it input(i.e voltage across it). From it governing equation I=I' * e^(V/V') ,where I' and V' is constant ,it is absolutly clear.

Answer 2

Because it's performance (current flow, resistance, voltage drop) do not vary linearly with its input.

For example, as long as it's peak inverse voltage isn't exceeded, an increase in reverse polarity voltage causes nearly no increase in current, it stays near 0. Conversely, once a diode is forward biased, an increase in current will cause nearly no increase in the voltage drop across it. In other words once forward biased, an increase in voltage applied across the diode will cause a proportional increase in current with no increase in voltage drop across it.