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Q8. A. What is reactive power? Why is such term not encountered when d-c sources are used in electric circuit? B. A transistor amplifier stage comprises a transistor of parameters hie = 800Ω and hfe = 50 and hoe = 20µ S, and bias components and coupling capacitors of negligible effect. The input signal consists of an e.m.f of 60mV from a source of internal resistance 2.2k Ω and total load on the stage output is 4k Ω. Determine the current, voltage and power gains of the amplifier stage.