Question
Question: When the voltage drop across a p – n junction dodeis increased from \(0.65\) V to \(0.70V,\) the cha...
When the voltage drop across a p – n junction dodeis increased from 0.65 V to 0.70V, the change in the diode current is 5 mA. The dynamic resistance of the diode is.
A
20Ω
B
50Ω
C
10Ω
D
80Ω
Answer
10Ω
Explanation
Solution
: Dynamic resistance, rd=ΔIΔV
rd=5×10−3A0.7V−0.65V=50.05×1000Ω=10Ω