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A transistor has two p-n junctions. The batteries should be connected such that
- a)both junctions are forward biased
- b)both junctions are reverse biased
- c)one junction is forward biased and the other is reverse biased
- d)none of the above
Correct answer is option 'C'. Can you explain this answer?
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A transistor has two p-n junctions. The batteries should be connected ...
Emitter-base junction is forward biased and base collector junction is reverse biased.
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A transistor has two p-n junctions. The batteries should be connected ...
Understanding Transistor Junctions
A transistor consists of two p-n junctions and can be configured in various ways to operate effectively in electronic circuits. The key to its functionality lies in the biasing of these junctions.
Types of Biasing
- Forward Bias: This condition allows current to flow through the junction. The p-side is connected to a higher potential than the n-side.
- Reverse Bias: Here, the current is blocked as the p-side is connected to a lower potential than the n-side.
Why Option C is Correct
In a transistor, one junction must be forward biased while the other is reverse biased for proper operation:
- Forward Biased Junction:
- This junction allows current to flow freely, facilitating the conduction process.
- It acts as a "gateway" for charge carriers, enhancing the transistor's ability to amplify or switch signals.
- Reverse Biased Junction:
- This junction prevents current flow, creating a depletion region that controls the transistor's operation.
- It helps maintain the transistor's operational stability and allows for the control of the current flowing through the device.
Conclusion
For a transistor to function effectively, it should be configured such that one junction is forward biased (allowing current flow) and the other is reverse biased (blocking current flow). This unique configuration enables the transistor to amplify signals and control electrical currents in various applications, making option 'C' the correct answer.
A transistor consists of two p-n junctions and can be configured in various ways to operate effectively in electronic circuits. The key to its functionality lies in the biasing of these junctions.
Types of Biasing
- Forward Bias: This condition allows current to flow through the junction. The p-side is connected to a higher potential than the n-side.
- Reverse Bias: Here, the current is blocked as the p-side is connected to a lower potential than the n-side.
Why Option C is Correct
In a transistor, one junction must be forward biased while the other is reverse biased for proper operation:
- Forward Biased Junction:
- This junction allows current to flow freely, facilitating the conduction process.
- It acts as a "gateway" for charge carriers, enhancing the transistor's ability to amplify or switch signals.
- Reverse Biased Junction:
- This junction prevents current flow, creating a depletion region that controls the transistor's operation.
- It helps maintain the transistor's operational stability and allows for the control of the current flowing through the device.
Conclusion
For a transistor to function effectively, it should be configured such that one junction is forward biased (allowing current flow) and the other is reverse biased (blocking current flow). This unique configuration enables the transistor to amplify signals and control electrical currents in various applications, making option 'C' the correct answer.
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A transistor has two p-n junctions. The batteries should be connected ...
D
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A transistor has two p-n junctions. The batteries should be connected such thata)both junctions are forward biasedb)both junctions are reverse biasedc)one junction is forward biased and the other is reverse biasedd)none of the aboveCorrect answer is option 'C'. Can you explain this answer?
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