题目内容

P-type semiconductors contains ( ) impurity atoms.

A. donor
B. acceptor
C. electrons
D. holes

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The majority carriers in p-type materials are ( ).

A. donor
B. acceptor
C. electrons
D. holes

Some of the modern ohmmeters have a diode test setting. If you do not have one of these ohmmeters then to test the diode you need to check its resistance in the forward and the reverse direction. These resistances should be relatively ( ) in the forward direction.

A. high
B. low
C. not sure

When the temperature is increased, the curve of the i-v characteristics of diode ( )

A. moves to the left
B. moves to the right
C. moves up
D. moves down

N-type semiconductors contains ( ) impurity atoms.

A. donor
B. acceptor
C. electrons
D. holes

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