81. What is the barrier potential of a silicon diode at room temperature?
82. The Norton current is sometimes called the
83. At room temperature a conductor has low many holes?
84. A current source has an internal resistance of 100 kW. What is the largest load resistance if the current source must appear stiff?
85. When the Q point moves along the load line, the voltage increases when the current
86. What is the smallest number of polarities required for current flow?
87. A diode is in series with 220W. If the voltage across the resister is 4V, what is the current through the diode?
88. Two diodes are in series. The first diode has a voltage of 0.75 V and the second has a voltage of 0.8 V. If the current through the first diode is 500 mA, what is the current through the second diode
89. The graph of current gain versus collector current indicates that the current gain
90. Which one of the following statements is true for the currents in a parallel RL circuit?
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