21. The power dissipated by a transistor approximately equals the collector current times a. Base-emitter voltage b. Collector-emitter voltage c. Base supply voltage d. 0.7 V 22. A small collector current with zero base current is caused by the leakage current of the a. Emitter diode b. Collector diode c. Base diode d. Transistor
25. The base-emitter voltage of an ideal transistor is a. 0 b. 0.3 V c. 0.7 V d. 1 V 26. If you recalculate the collector-emitter voltage with the second approximation, the answer will usually be a. Smaller than the ideal value b.. The same as the ideal value c. Larger than the ideal value d. Inaccurate
23. A transistor acts like a diode and a
27. In the active region, the collector current is not changed significantly by
a. Voltage source b. Current source c. Resistance d. Power supply
a. Base supply voltage b. Base current c. Current gain d. Collector resistance
24. If the base current is 100 mA and the current gain is 30, the collector current is
28. The base-emitter voltage of the second approximation is
a. 300 mA b. 3 A c. 3.33 A d. 10 A
a. 0 b. 0.3 V c. 0.7 V d. 1 V