When a BJT has its base-emitter junction reverse biased and its collector-base junction reverse biased, it is in the （ ）.
cutoff region
举一反三
- If a BJT is applied in the cutoff region, the base-emitter junction must be ( ) biased and the base-collector junction must be ( ) biased
- 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
- 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 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
- When reverse -biased, an ideal( ) would block all current. Areal one lets perhaps 10 microamperes through- not a lot, but still not perfect.
内容
- 0
For basic operation of a transistor the base-emitter junction is （ ） biased.
- 1
When the follower is on the base circle of the cam， the pump plunger is at the （） of its stroke.
- 2
For the abrupt PN junction, when the reverse voltage is enough large, and Vbi can be omitted, the barrier capacitance is inversely proportional to ( ). 未知类型：{'options': ['', '| V |', '', ''], 'type': 102}
- 3
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
- 4
when a transistor is in the forward-active mode, the collector current is constant with a constant base current