Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > Compared to bipolar transistors, field effect...
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Compared to bipolar transistors, field effect transistors are NOT normally characterized by:
- a)high input impedance
- b)a reverse-biased PN junction
- c)low input impedance
- d)low power consumption
Correct answer is option 'C'. Can you explain this answer?
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Verified Answer
Compared to bipolar transistors, field effect transistors are NOT norm...
The difference between FET and BJT is explained in the following table:
Hence, Option C is correct.
Most Upvoted Answer
Compared to bipolar transistors, field effect transistors are NOT norm...
The difference between FET and BJT is explained in the following table:
Hence, Option C is correct.
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Compared to bipolar transistors, field effect transistors are NOT norm...
High input impedance:
Field effect transistors (FETs) are characterized by high input impedance, which means they allow a high resistance to the input signal. This property makes FETs suitable for use in circuits where the input signal needs to be amplified without loading the source.
Reverse-biased PN junction:
Unlike bipolar transistors, FETs do not have a PN junction that is reverse-biased. Field effect transistors operate based on the voltage applied to the gate terminal rather than the current flowing through a PN junction.
Low input impedance:
Field effect transistors have low input impedance compared to bipolar transistors. This means that FETs require a smaller amount of current to drive the device, making them more suitable for applications where input impedance needs to be low.
Low power consumption:
Another characteristic of field effect transistors is their low power consumption. FETs consume less power compared to bipolar transistors, making them more energy-efficient and suitable for battery-operated devices or applications where power efficiency is crucial.
In conclusion, while FETs are known for their high input impedance, lack of a reverse-biased PN junction, and low power consumption, they are not characterized by low input impedance.
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Compared to bipolar transistors, field effect transistors are NOT normally characterized by:a)high input impedanceb)a reverse-biased PN junctionc)low input impedanced)low power consumptionCorrect answer is option 'C'. Can you explain this answer?
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