List of top Electrical Engineering Questions on Transistors

A silicon diode has a reverse saturation current of \(10^{-12}\text{ A}\) at 300 K. The approximate increase in temperature such that saturation current doubles is

A BJT in CE mode has \(\beta = 120\) and collector current \(I_C = 2.4\text{ mA}\). The small-signal transconductance at room temperature (\(V_T \approx 25\text{ mV}\)) is approximately

When a transistor is used as a switch, it operates in

The input impedance of an ideal operational amplifier is

In an NPN transistor, the region which is heavily doped is

In a common emitter transistor configuration, the current gain \(\beta\) is given by