Semiconductor E...

Consider two $$npn$$ transistors as shown in figure. If $$0$$ volts corresponds to false and $$5$$ volts correspond to true then the output at $$C$$ correspond to true then the output at $$C$$ corresponds to:

The I -V characteristic of an LED is:

The impurity atoms needed to make a p-type semiconductor are

The dominant mechanisms for motion of charge carriers in forward and reversed biased silicon p-n junctions are :

In the depletion layer, the electric field created

Which of the following circuits correctly represents the following truth table?

The dominant mechanisms of motion of change carriers in forward and reverse biased silicon $$P-N$$ junction are

In which of the following circuits is the diode forward biased?

A zener regulated power supply consists of a $$9 V $$ battery connected in series with a and a zener diode. The zener diode maintains a constant voltage drop of $$4V $$ The current drawn by the load resistance will be :

 If the resistivity of an alloy is $$\rho '$$ and that of constituent metal is $$\rho $$ then :