Semiconductor E...

The value of the resistor, $$R_S$$, needed in the DC voltage regulator circuit shown here, equals

The logic circuit shown below has the input waveforms 'A' and 'B' as shown. Pick out the correct output waveform. 

The truth table given in figure represents:

An experiment is performed to determine the $$I - V$$ characteristics of a Zener diode, which has a protective resistance of $$R = 100 \Omega$$, and a maximum power of dissipation rating of $$1 W$$. The minimum voltage range of the DC source in the circuit is

Identify the gate and match A, B, Y in bracket to check.

Identify the semiconductor devices whose characteristics are given above in the order $$(a), (b), (c), (d):$$

The combination of gates shown below yields 

If a,b,c,d are inputs to a gate and x is its output then as per the following time graph the gate is:

A Zener diode is connected to a battery and a load as shown. The currents $$I$$, $$I_Z$$ and $$I_L$$ are respectively

Carbon, silicon and germanium have four valence electrons each. At room temperature which one ofthe following statements is most appropriate ?