超星 - L4-课后练习 - 查题吧

单选题

() is not electronic component.

A. vacuum tube
B. integrated circuit
C. silicon
D. transistor

单选题

The kilo-ohm is the unit of ().

A. weight
B. resistance
C. capacitance
D. inductance

单选题

() are used to tune radios to particular frequencies in the resonant circuits .

A. resistor
B. transformer
C. capacitor
D. inductor

单选题

() is an electronic component made of semiconductor material.

A. resistor
B. transformer
C. PN junction
D. transistor

单选题

A small current flowing from the () to the emitter can control a much larger current between the collector and emitter terminals.

A. base
B. gate
C. P type semiconductor
D. N type semiconductor

单选题

When reverse-biased, an ideal () would block all current. A real one lets perhaps 10 microamperes through–not a lot, but still not perfect.

A. forward
B. switch
C. resistor
D. diode

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