Whether the ohmmeter lead on the arrow side of the diode is at a higher potential or a lower potential than other lead, when the ohmmeter shows low resistance.
Explanation of Solution
Introduction:
In a forward biased diode,battery’s positive terminal is connected with the p-type material and negative terminal with the n-type.
When the ohmmeter shows lower resistance, it means the diode is forward biased, that is,the positive terminal of the supply is in connection with the p-side and negative terminal with the n-side. The arrow head of the p-n diode represents the n-type material. In forward bias, the n-type is in connection with the negative terminal so it is at a lower potential. Thus, the ohmmeter lead connected to the arrow head of the diode is at a lower potential than the lead connected to the other side.
Conclusion:
The ohmmeter lead connected to the arrow head of the diode is at a lower potential than the lead connected to the other side when the diode is forward biased.
Chapter 29 Solutions
Glencoe Physics: Principles and Problems, Student Edition
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