Suppose in a non linear circuit consisting of a diode, resistor and a voltage source. if voltage is increased current is increased, but does the potential between the diode (Vd) change?

Question

anonymous · Answer

i mean does the potential across the diode change with change in voltage source.. every connection made is in series

radar · Answer

Depending where we are on the curve.  Typically under forward biased condition, the drop is  approximately .6 volt for silicon diode, and .3 volt for germanium.  Under reverse voltage conditions some diodes (Zeners) have a breakdown point where the voltage remains constant for a given range of current, these are used a voltage regulators or voltage reference levels.