Electronics and Communication Engineering - Analog Electronics - Discussion
Discussion Forum : Analog Electronics - Section 1 (Q.No. 7)
7.
In figure v1 = 8 V and v2 = 4 V. Which diode will conduct?
Answer: Option
Explanation:
D1 will conduct and the output voltage will be about 7 V. Therefore D2 will be reverse biased and will not conduct.
Discussion:
32 comments Page 3 of 4.
Dhana said:
9 years ago
Suppose I will put same voltage at two nodes.
Two diodes are conduct or not please clarify.
Two diodes are conduct or not please clarify.
Shivanand said:
9 years ago
The diode which experiences the maximum potential differences between the two nodes, that diode will conduct. As in this case between v1 and ground Diode D1 experiences the potential difference of 8v but D2 experiences only 4v. So the diode D1 conducts.
Gayathri said:
9 years ago
How did you say, diode D2 is not conduct?
Nimi said:
10 years ago
B is the correct. Because of D1 has more than D2 voltage range. Hence D1 only conduct.
Vishnu said:
10 years ago
Output voltage will be 5V only (not 7V). So D2 will be reverse biased.
Mule pavan said:
10 years ago
How D2 is reverse biased?
Kayeschowdhury said:
10 years ago
B is the right answer. Because d1 conducts d2 will be in reverse biases mode. D2 will not conduct that time.
Sindhu said:
1 decade ago
How output voltage was 7v?
Vikesh said:
1 decade ago
B is correct answer. First you suppose that both are forward biased and then find out the voltage at node. You will see that diode D2 will reverse biased.
Shankar said:
1 decade ago
Option C is the correct answer. Because both diode are forward biased and above cutoff voltage.
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