PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365316
In a reverse biased \(p - n\) junction, when the applied bias voltage is equal to the breakdown voltage, then
1 current remains constant while voltage increases sharply
2 voltage remains constant while current increases sharply
3 current and voltage increase
4 current and voltage decrease
Explanation:
In a reverse biased \(p - n\) junction, when the applied bias voltage is equal to the breakdown voltage, then voltage remains constant while current increases sharply.
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365317
\(p\)-\(n\) junction in reverse bias behaves like
1 An inductor
2 A condenser
3 Amplifier
4 An off switch
Explanation:
Conceptual Question
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365318
Assertion : In the following circuit the potential drop across the resistance is zero. Reason : The resistance is of low value.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\(p\)' side of diode is connected to more negative \((-5 V)\) than \(n\) side of \((-2 V)\). Diode is reverse biased. Both assertion and reason are separately true. However, potential difference across the resistance is zero, because diode is in reverse biasing hence no current flows. So correct option is (2).
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365319
For the given circuit of \(pn\) junction diode, which is correct?
1 In forward bias the voltage across \(R\) is \(V\).
2 In reverse bias the voltage across \(R\) is \(V\).
3 In forward bias the voltage across \(R\) is \(2 \mathrm{~V}\).
4 In reverse bias the voltage across \(R\) is \(2 V\).
Explanation:
In forward bias the resistance of diode is neglible and hence applied voltage will be across resistance. In reverse bias current does not pass through the circuit. So potential difference across resistor is zero. Correct option is (1)
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365316
In a reverse biased \(p - n\) junction, when the applied bias voltage is equal to the breakdown voltage, then
1 current remains constant while voltage increases sharply
2 voltage remains constant while current increases sharply
3 current and voltage increase
4 current and voltage decrease
Explanation:
In a reverse biased \(p - n\) junction, when the applied bias voltage is equal to the breakdown voltage, then voltage remains constant while current increases sharply.
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365317
\(p\)-\(n\) junction in reverse bias behaves like
1 An inductor
2 A condenser
3 Amplifier
4 An off switch
Explanation:
Conceptual Question
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365318
Assertion : In the following circuit the potential drop across the resistance is zero. Reason : The resistance is of low value.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\(p\)' side of diode is connected to more negative \((-5 V)\) than \(n\) side of \((-2 V)\). Diode is reverse biased. Both assertion and reason are separately true. However, potential difference across the resistance is zero, because diode is in reverse biasing hence no current flows. So correct option is (2).
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365319
For the given circuit of \(pn\) junction diode, which is correct?
1 In forward bias the voltage across \(R\) is \(V\).
2 In reverse bias the voltage across \(R\) is \(V\).
3 In forward bias the voltage across \(R\) is \(2 \mathrm{~V}\).
4 In reverse bias the voltage across \(R\) is \(2 V\).
Explanation:
In forward bias the resistance of diode is neglible and hence applied voltage will be across resistance. In reverse bias current does not pass through the circuit. So potential difference across resistor is zero. Correct option is (1)
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365316
In a reverse biased \(p - n\) junction, when the applied bias voltage is equal to the breakdown voltage, then
1 current remains constant while voltage increases sharply
2 voltage remains constant while current increases sharply
3 current and voltage increase
4 current and voltage decrease
Explanation:
In a reverse biased \(p - n\) junction, when the applied bias voltage is equal to the breakdown voltage, then voltage remains constant while current increases sharply.
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365317
\(p\)-\(n\) junction in reverse bias behaves like
1 An inductor
2 A condenser
3 Amplifier
4 An off switch
Explanation:
Conceptual Question
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365318
Assertion : In the following circuit the potential drop across the resistance is zero. Reason : The resistance is of low value.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\(p\)' side of diode is connected to more negative \((-5 V)\) than \(n\) side of \((-2 V)\). Diode is reverse biased. Both assertion and reason are separately true. However, potential difference across the resistance is zero, because diode is in reverse biasing hence no current flows. So correct option is (2).
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365319
For the given circuit of \(pn\) junction diode, which is correct?
1 In forward bias the voltage across \(R\) is \(V\).
2 In reverse bias the voltage across \(R\) is \(V\).
3 In forward bias the voltage across \(R\) is \(2 \mathrm{~V}\).
4 In reverse bias the voltage across \(R\) is \(2 V\).
Explanation:
In forward bias the resistance of diode is neglible and hence applied voltage will be across resistance. In reverse bias current does not pass through the circuit. So potential difference across resistor is zero. Correct option is (1)
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365316
In a reverse biased \(p - n\) junction, when the applied bias voltage is equal to the breakdown voltage, then
1 current remains constant while voltage increases sharply
2 voltage remains constant while current increases sharply
3 current and voltage increase
4 current and voltage decrease
Explanation:
In a reverse biased \(p - n\) junction, when the applied bias voltage is equal to the breakdown voltage, then voltage remains constant while current increases sharply.
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365317
\(p\)-\(n\) junction in reverse bias behaves like
1 An inductor
2 A condenser
3 Amplifier
4 An off switch
Explanation:
Conceptual Question
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365318
Assertion : In the following circuit the potential drop across the resistance is zero. Reason : The resistance is of low value.
1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\(p\)' side of diode is connected to more negative \((-5 V)\) than \(n\) side of \((-2 V)\). Diode is reverse biased. Both assertion and reason are separately true. However, potential difference across the resistance is zero, because diode is in reverse biasing hence no current flows. So correct option is (2).
PHXII14:SEMICONDUCTOR ELECTRONICS- MATERIALS- DEVICES AND SIMPLE CIRCUITS
365319
For the given circuit of \(pn\) junction diode, which is correct?
1 In forward bias the voltage across \(R\) is \(V\).
2 In reverse bias the voltage across \(R\) is \(V\).
3 In forward bias the voltage across \(R\) is \(2 \mathrm{~V}\).
4 In reverse bias the voltage across \(R\) is \(2 V\).
Explanation:
In forward bias the resistance of diode is neglible and hence applied voltage will be across resistance. In reverse bias current does not pass through the circuit. So potential difference across resistor is zero. Correct option is (1)
