The typical output characteristics curve for a transistor working in the common-emitter configuration is shown in the figure.

The estimated current gain from the figure is..................

To measure light intensity we use

The Boolean equation for the circuit as shown in figure is

 

The resistance of a silicon junction diode, whose V - I characteristics is as shown in figure is (V_k = 0.7 V)

Two rain drops reach earth from clouds with different terminal velocities having ratio 9 : 4. Then the ratio of their volumes is

In the voltage regulator circuit shown below, the reverse breakdown voltage of zener diode is 3 V. Find the current through zener diode.