| 1. | In saturation region JFET acts like a ? | |
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Switch
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Short circuit
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Bipolar device
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Resistance
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Report Question| 2. | The transconductance curve of a JFET is ? | |
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Inverted V-type
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Parabolic
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Hyperbolic
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A straight line
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| 3. | In a FET ? | |
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One junction has reverse bias on one side and forward bias on the other
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Both the junctions are reverse biased
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One junction has reverse bias on both sides of the junction
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One junction is reverse biased and the other forward biased
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| 4. | In P-channel FET the current is due to ? | |
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Electrons
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Holes
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Both holes and electrons
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Either holes or electrons
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| 5. | The name field effect is related to the ....... layers of a JFET ? | |
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Depletion
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Gate
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Source
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Drain
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| 6. | When the positive voltage on the gate of a P-channel JFET is increased, the drain current will ? | |
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Remain same
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Decrease
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Increase
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Any of the above
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| 7. | In the ohmic region, the FET can be used as ? | |
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Voltage variable capacitor
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Voltage variable inductor
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Voltage variable resistor
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None of the above
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| 8. | The JFET is also known as square law device because its ? | |
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Drain current varies as square of the gate source voltage
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Transconductance curve is parabolic
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Reverse gate leakage current varies as square of reverse gate voltage
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Drain current varies as square of its drain voltage for a fixed Vgs
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| 9. | When a JFET is cut off, it's like an ............ switch and when it is saturated, it's like a .......... switch ? | |
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Closed, closed
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Open, closed
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Open, open
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Closed, open
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| 10. | The input resistance of JFET ideally approaches ? | |
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Zero
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5 ohms
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200 ohms
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Infinity
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