When a BJT is biased in the cutoff region the collector-to-emitter voltage is typically equal to （ ）.
A: the emitter voltage
B: the collector supply voltage
C: 0.03 V
D: the collector current times the collector resistor
A: the emitter voltage
B: the collector supply voltage
C: 0.03 V
D: the collector current times the collector resistor
举一反三
- When a BJT is in cutoff, the collector-to-emitter voltage is typically equal to _____ A: collector supply voltage B: collector current times collector resistor C: 0.3 Volts D: emitter voltage
- When a BJT is operating in the active region, the voltage drop from the base to the emitter VBE is approximately equal to the____ A: base bias voltage B: base current times the base resistor C: diode drop (about 0.7 V) D: emitter voltage
- β is the ratio of _____. A: collector current to emitter current B: base current to collector current C: collector current to base current D: emitter current to collector current
- when a transistor is in the forward-active mode, the collector current is constant with a constant base current
- The function of direct current regulated power supply is to input an alternating current power of 220volts, so that it can output __________.( ) A: alternating current 200 volts voltage B: direct current 24 volts voltage C: direct current 200 volts voltage D: alternating current 24 volts voltage