When testing a semiconductor diode with a DMM, normal values are
A) 0.7 V for silicon and 0.3 V for germanium
B) 0.3 V for silicon and 0.7 V for germanium
C) 1.2 V for silicon and 0.6 V for germanium
D) 1.7 V for silicon and 1.3 V for germanium

Question

Quizplus · Accepted Answer

When testing a semiconductor diode using a digital multimeter (DMM) in the diode test mode, a silicon diode typically shows a forward voltage drop around 0.7 volts, while a germanium diode shows around 0.3 volts. This is due to the different material properties and bandgap energies of silicon and germanium.

When Testing a Semiconductor Diode with a DMM, Normal Values