Chapter 10: Resistance and resistivity
Physics (9702)
AS & A Level
Cambridge
درسنامه آموزشی این مبحث
The graph shows the I–V characteristic for a semiconductor diode.
Which statement can be deduced from the graph?
1 )
Above a certain positive potential difference the diode obeys Ohm’s law.
2 )
Current is directly proportional to potential difference when the current in the diode is in one direction.
3 )
The diode has zero resistance when the current in the diode is in one direction.
The resistance of the diode depends upon the potential difference across it.
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