Q33 of 71 Page 418

Let evaluate X for

(a) A = 1, B = 0 C = 1


(b) A = B = C = 1 and


(c) A = B = C = 0.



(a) A=1, B=0, C=1



X = 1×1+ 0×0 + 1×0


X=1


(b) A=B=C=1



X = 1×0 + 1×0 + 1×0


X=0


(c) A=B=C=0



X = 0×1 + 0×1 + 0×1


X=0


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A load resistor of 2 kΩ is connected in the collector branch of an amplifier circuit using a transistor in common-emitter mode. The current gain β = 50. The input resistance of the transistor is 0.50 kΩ. If the input current is changed by 50 μA,

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