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Unformatted text preview: (d) a variable resistor. Q.5. If the base-emitter junction is open, the collector voltage is: (a) V CC , (b) 0 V, (c) floating, (d) 0.2 V. Q.6. Once in saturation, a further increase in base current will: (a) cause the collector current to increase, (b) not affect the collector current, (c) cause the collector current to decrease, (d) turn the transistor off. Q.7. In cutoff, V CE is: (a) 0 V, (b) minimum, (c) maximum, (d) equal to V CC , (e) answers (a) and (b), (f) answers (c) and (d). ==================================================================== Q.8. Complete the following formulas for an npn transistor, operating in the linear active region: a. V BE = b. I B = ( V BB V BE )/ c. V CE = V CC I C Wednesday, 11 December 2002...
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- Fall '07