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 2 of 3.
Aneesh cv dev said:
10 years ago
First active diode need for 0.7 voltage.
Since the voltage across R1 = 12-0.7 = 11.3.
Since the voltage across R1 = 12-0.7 = 11.3.
Sweta said:
1 decade ago
Sorry I can't understand please anyone can explain.
Mohini sagariya said:
1 decade ago
0.7 is the Voltage across the pn diode so according to the kvl answer is 11.3
Shahin Ali said:
1 decade ago
0.7v is the cut off voltage of Silicon.
Amites said:
1 decade ago
0.7v is Barrier Voltage which must be applied for diffusion to happen.
Gopal verma said:
1 decade ago
But resistance in kilo ohms and voltage in volts so both are different in systems. Answer should be 11.3 * 10 to the power -3.
Vishnu said:
1 decade ago
0.7 voltage drops across PN junction
Pradheep h n said:
1 decade ago
Since diode is silicon so forward drop at diode is 0.7V remind voltage of Vin = 12-0.7 = 11.3
Akanksha said:
1 decade ago
As the forward bias Si P-N Junction produces a barrier voltage of 0.7 V. Barrier voltage will oppose forward biasing voltage 12V .
That's why 12-0.7 = 11.3V is the answer.
That's why 12-0.7 = 11.3V is the answer.
Saichaitanya said:
1 decade ago
@Meena/ Santosh - Why the difference have been considered here (i.e. 13-0.7), since the voltage have to be added in series?
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers