Electronics - Semiconductor Principles - Discussion
Discussion Forum : Semiconductor Principles - General Questions (Q.No. 24)
24.
What is the voltage across R1 if the P-N junction is made of silicon?


Discussion:
23 comments Page 3 of 3.
Teja said:
8 years ago
The diode is silicon or germanium is not mentioned in the question so how can you guess if it is germanium (Ge) cutoff voltage 0.3? then answer is 11.7v.
Masud Alom said:
8 years ago
The diode cutoff voltage is 0.7 volts for silicon.
So the remaining voltage of input will be obtained at the output i.e., 12-0.7 = 11.3V.
So the remaining voltage of input will be obtained at the output i.e., 12-0.7 = 11.3V.
(2)
Karthika said:
7 years ago
SI cut off voltage is 0.7.
Load voltage is 12.
So, the voltage across 1ohm resistor is VR=vl-vsi=12-0.7 = 11.3.
Load voltage is 12.
So, the voltage across 1ohm resistor is VR=vl-vsi=12-0.7 = 11.3.
(1)
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