Basic Science : Transistor Characteristics QUESTIONS AND ANSWERS :: part1 : 6 to 10
Following Basic Science multiple choice objective type questions and answers will help you in many types of 2024 job and other entrance examinations :
6.In a common base transistor circuit, the ratio of variation of collector current to the corresponding variation of emitter current at constant collector to base potential is |
| current gain |
| input impedance |
| output impedance |
| voltage amplification factor |
7.The common emitter circuit has |
| low input independence and high power gain |
| low input independence and low power gain |
| high input independence and high power gain |
| high input independence and low power gain |
8.If α = 0.9, the value of β is |
| 0.9 |
| 49 |
| 9 |
| 10 |
9.The input impedance of a common emitter NPN transistor is the between |
| the variation in emitter-base potential and the corresponding variation in the base current at constant collector-emitter potential |
| the variation in collector current to the corresponding variation in emitter current at constant collector base potential |
| the variation in the collector current to the corresponding change in the collector base voltage at constant emitter current |
| the variation in the emitter current to the corresponding variation in collector current at a constant collector emitter voltage |
10.The value of IE in a transistor for which β = 50 and IB =20 µA is |
| 0.2 mA |
| 0.5 mA |
| 1.02 mA |
| 1.02 µA |
More Transistor Characteristics QUESTIONS AND ANSWERS available in next pages
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