| 1. | Most of the electrons in the base npn transistor do not recombine because they ? | |
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Have long lifetime
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Have negative charge
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Must flow long way through the base
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Flow out of the base
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Report Question| 2. | for transistor action ? | |
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The base region must be very thin and lightly doped
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The emitter junction should be forward biased and collector junction should be reverse biased emitter should be heavily doped so that it can
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Supply the required amount of majority carriers
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All of these
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| 3. | The input/output relationship of the common-collector and common-base amplifiers is ? | |
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270 degrees
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180 degrees
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90 degrees
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0 degrees
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| 4. | The base-emitter voltage of an ideal transistor is ? | |
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0 V
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0.3 V
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0.7 V
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1 V
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| 5. | A current ratio Ic/Ie of is usually less than one and is called ? | |
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beta
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theta
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alpha
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omega
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| 6. | The current gain of a transistor is the ratio of the ? | |
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Collector current to emitter current
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Collector current to base current
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Base current to collector current
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Emitter current to collector current
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| 7. | In a transistor, which normal biasing, the ? | |
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Emitter junction is high and collector junction has low resistance
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Emitter junction has low and collector junction has high resistance
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Both emitter and collector junction have low resistance
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Both emitter and collector junction have high resistance
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| 8. | In CB configuration, the output VI characteristics of a transistor are drawn by taking ? | |
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VCB versus IC for constant IE
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VCB versus IB for constant IE
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VCE versus IC for constant IE
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VCE versus IB for constant IE
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| 9. | Doping concentration of BJT is high in the ? | |
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Emitter region
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Base region
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Collector region
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None of the above
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| 10. | A transistor acts like a diode and a ? | |
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Voltage source
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Current source
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Resistance
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Power supply
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