| 1. | Which is beta's current ratio ? | |
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Ic/Ib
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Ic/Ie
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Ib/Ie
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Ie/Ib
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Report Question| 2. | Which of the following is true for a pnp transistor in active region ? | |
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CB junction is reversed bias and the EB junction is forward bias
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CB junction is forward bias and the EB junction is forward bias
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CB junction is forward bias and the EB junction is reverse bias
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CB junction is reversed bias and the EB junction is reverse bias
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| 3. | In an npn transistor, the majority carriers in the base are ? | |
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Free electrons
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Holes
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Neither
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Both
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| 4. | When transistors are used in digital circuits they usually operate in the ? | |
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active region
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breakdown region
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saturation and cutoff regions
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linear region
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| 5. | The C-B configuration is used to provide which type of gain ? | |
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voltage
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current
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resistance
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power
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| 6. | A transistor has how many doped regions ? | |
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1
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2
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3
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4
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| 7. | Three different Q points are shown on a dc load line. The upper Q point represents the ? | |
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minimum current gain
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intermediate current gain
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maximum current gain
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cutoff point
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| 8. | What is one important thing transistors do ? | |
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Amplify weak signals
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Rectify line voltage
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Regulate voltage
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Emit light
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| 9. | Which of the following is true for a pnp transistor in saturation region ? | |
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CB junction is reversed bias and the EB junction is forward bias
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CB junction is forward bias and the EB junction is forward bias
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CB junction is forward bias and the EB junction is reverse bias
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CB junction is reversed bias and the EB junction is reverse bias
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| 10. | A transistor has a (Beta)dc of 250 and a base current, Ib, of 20 microA. The collector current, equals ? | |
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500 microA
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5 mA
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50 mA
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5 A
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