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Re: PTU old question papers 3rd SEM
As you want to get the old question papers of B.Tech (ECE) 3ed semester of Punjab Technical University so for your help I am uploading the question paper here. What will be the PlV of non-conducting diode if Vm is the peak voltage across secondary of the transformer in a half-wave rectifier and a shunt capacitor filter is also used? Write any two applications of Photo diode. What are characteristics of a good amplifier? In what respect FETs better than BJTs? Define photosensitivity of a photo transistor. What happens to the drain current of an-channel JFET when a negative voltage is applied on its gate? Why it is always considered better to fix Q-point in the middle of active region? Explain why fixed bias circuit, inspite of its simplicity, is not much used in practice? For the complete question paper click on the attachment given below |
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