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單項(xiàng)選擇題

The resistor voltage and resistor current in this circuit are（）.

A.10V，5mA
B.11V，2mA
C.11V，11mA
D.2V，11mA

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單項(xiàng)選擇題

What is the value of the voltage dropped across forward-biased silicon diodes that are connected in parallel with each other？（）.

A.11.3V
B.35V
C.7V
D.4V

單項(xiàng)選擇題

When a p-n junction is reverse-biased，its junction resistance is（）.

A.high
B.low
C.determined by the components that are external to the device
D.constantly changing