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Q4. The NPN transistor shown in Fig Q3 has a volt drop between base and emitter of 0.4 V and the base current is small enough to be ignored. The volt drop across the emitter resistor is 3.6 V.

Calculate EACH of the following:

(a) The value of the resistor RB in the bias network;

(b) The value of the collector-emitter current;

(c) The value of the load resistor RL if the steady state voltage at the collector is 12 V as shown.