| 1. | When a free electron recombines with a hole in the base region, the free electron becomes ? | |
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Another free electron
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A valence electron
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A conduction-band electron
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A majority carrier
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Report Question| 2. | The base-emitter voltage is usually ? | |
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Less than the base supply voltage
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Equal to the base supply voltage
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More than the base supply voltage
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Cannot answer
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| 3. | The fact that only a few holes are in the base region means the base is ? | |
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Lightly doped
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Heavily doped
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Undoped
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None of the above
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| 4. | Junction Field Effect Transistors (JFET) contain how many diodes ? | |
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4
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3
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2
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1
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| 5. | The JFET is a ? | |
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Unipolar device
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Tripolar device
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Bipolar device
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None of the above
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| 6. | The JFETs are normally used in ? | |
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Cut-off region
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Saturation region
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Ohmic gate
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None of the above
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| 7. | Whenever a JFET operates above pinch-off voltage ? | |
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Drain current starts decreasing
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Drain current increases steeply
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Depletion regions become smaller
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Drain current remains nearly constant
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| 8. | A JFET can operate in ? | |
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Only depletion mode
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Only enhancement mode
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Both depletion and enhancement modes
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Neither depletion nor enhancement modes
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| 9. | Three terminals of a JFET are ? | |
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Pole, dipole and bipole
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Emitter, collector and base
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Source, drain and current
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Top, base and side
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| 10. | A FET differs from a bipolar transistor as it has ? | |
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Simpler fabrication
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Negative resistance
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High input impedance
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Any of the above
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