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Q9. Fig Q9 shows a single-transistor amplifier. The voltage between the transistor base and emitter is 0.6 V and the D.C. voltage at the output terminals is 8 V.

(a) Calculate EACH of the following, assuming that the base current is small enough to be neglected:

(i) The voltage between the collector and the emitter of the transistor;(4)

(ii) The power dissipated in the emitter resistor; (3)

(iii) The power dissipated in the transistor. (3)

(b) Sketch the circuit shown in Fig Q9 to show the additional components needed to make the circuit suitable for amplifying A.C. signal. (3)

(c) State the purpose of the additional components shown in Fig Q9(b). (3)