In the circuit shown in Fig.14.14, when the input voltage of the base resistance is 10V, V_be is zero and V_ce is also zero. Find the values of I_b, I_c and β.

A Zener of power rating 1 W is to be used as a voltage regulator. If zener has a breakdown of 5V and it has to regulate voltage which fluctuated between 3V and 7V, what should be the value of Rs for safe operation (Fig.14.12)?

If each diode in Fig. 14.13 has a forward bias resistance of 25 �Ω and infinite resistance in reverse bias, what will be the values of the current I₁, I₂, I₃ and I₄?

Draw the output signals C₁ and C₂ in the given combination of gates (Fig. 14.15).

Consider the circuit arrangement shown in Fig 14.16 (a) for studying input and output characteristics of n-p-n transistor in CE configuration.

Select the values of R_B and R_C for a transistor whose V_BE = 0.7 V, so that the transistor is operating at point Q as shown in the characteristics shown in Fig. 14.16 (b).

Given that the input impedance of the transistor is very small and V_CC = V_BB = 16 V, also find the voltage gain and power gain of circuit making appropriate assumptions.