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When reverse voltage across silicon diode is changed from 4V to 8 V, what happens to depletion layer?
- a)It may increase or decrease
- b)It is unaffected
- c)It increases
- d)It decreases
Correct answer is option 'D'. Can you explain this answer?
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When reverse voltage across silicon diode is changed from 4V to 8 V, w...
When reverse voltage is applied across the silicon diode. If its voltage is increased, then its depletion layer be decreased.
The correct answer is: It decreases
The correct answer is: It decreases
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When reverse voltage across silicon diode is changed from 4V to 8 V, w...
The depletion layer in a diode refers to the region where there are no free charge carriers due to the diffusion of majority carriers across the junction. It acts as a barrier to the flow of current in the reverse bias condition.
When the reverse voltage across a silicon diode is increased from 4V to 8V, the following changes occur in the depletion layer:
1. **Increase in width**: The width of the depletion layer increases. This is because the reverse bias voltage applies an electric field that pushes the majority carriers away from the junction, causing the depletion region to widen.
2. **Decrease in electric field**: The electric field across the depletion layer decreases. This is because the increased reverse voltage reduces the net electric field across the junction. As a result, the strength of the electric field decreases, leading to a decrease in the electric field across the depletion region.
3. **Decrease in capacitance**: The capacitance of the diode decreases. The capacitance is inversely proportional to the width of the depletion layer. As the depletion layer widens due to the increased reverse voltage, the capacitance decreases.
The increase in reverse voltage from 4V to 8V causes the depletion layer in a silicon diode to decrease in size. This means that the barrier to the flow of current in the reverse bias condition becomes smaller. As a result, more current can flow in the reverse direction. Thus, the correct answer is option D - the depletion layer decreases.
When the reverse voltage across a silicon diode is increased from 4V to 8V, the following changes occur in the depletion layer:
1. **Increase in width**: The width of the depletion layer increases. This is because the reverse bias voltage applies an electric field that pushes the majority carriers away from the junction, causing the depletion region to widen.
2. **Decrease in electric field**: The electric field across the depletion layer decreases. This is because the increased reverse voltage reduces the net electric field across the junction. As a result, the strength of the electric field decreases, leading to a decrease in the electric field across the depletion region.
3. **Decrease in capacitance**: The capacitance of the diode decreases. The capacitance is inversely proportional to the width of the depletion layer. As the depletion layer widens due to the increased reverse voltage, the capacitance decreases.
The increase in reverse voltage from 4V to 8V causes the depletion layer in a silicon diode to decrease in size. This means that the barrier to the flow of current in the reverse bias condition becomes smaller. As a result, more current can flow in the reverse direction. Thus, the correct answer is option D - the depletion layer decreases.
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When reverse voltage across silicon diode is changed from 4V to 8 V, what happens to depletion layer?a)It may increase or decreaseb)It is unaffectedc)It increasesd)It decreasesCorrect answer is option 'D'. Can you explain this answer?
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When reverse voltage across silicon diode is changed from 4V to 8 V, what happens to depletion layer?a)It may increase or decreaseb)It is unaffectedc)It increasesd)It decreasesCorrect answer is option 'D'. Can you explain this answer? for Physics 2024 is part of Physics preparation. The Question and answers have been prepared according to the Physics exam syllabus. Information about When reverse voltage across silicon diode is changed from 4V to 8 V, what happens to depletion layer?a)It may increase or decreaseb)It is unaffectedc)It increasesd)It decreasesCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Physics 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When reverse voltage across silicon diode is changed from 4V to 8 V, what happens to depletion layer?a)It may increase or decreaseb)It is unaffectedc)It increasesd)It decreasesCorrect answer is option 'D'. Can you explain this answer?.
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