How can I measure the positive and negative resistance of a diode with a multimeter?
Due to the one-way conducting diode characteristics, normal low power diode resistance and small reverse resistance is large, positive and reverse resistance resistance are smaller diodes have short circuit damage, positive resistance and reverse resistance are the great open diodes have been damaged.
When the forward resistance measurement of diode by multimeter resistance standard (i.e. the small resistance), the positive side of the table with million black pen connected as diodes (or anode), one end of the red pen is connected with the negative electrode of the diode (or cathode).
