# What is topology of feedback for circuit?

I am confused between Voltage Shunt and Current Shunt Also mention why R2 shouldn't be considered as feedback as it is emitter degeneration resistance

Consider the above circuit why can't I consider the current being one sampled the only problem I see in doing that is that there is no load but if I consider the amplifier to of type series series that should not be a problem as current is going to considered as output quantity and why will I need to worry about load for its measurement.

• This looks like a homework problem, and is the third question you have asked in 24 hours regarding feedback and similar transistor circuits. Please tell us what you do understand about this circuit, about "voltage shunt", and about "current shunt". Ask a specific question. – Elliot Alderson Jun 21 at 12:20
• Yes I am revising Feedback circuits chapter so it explains all questions from that side and i am confused as all of circuit where i have seen feedback element taken from collector or drain the feedback type happens to be voltage type feedback I am confused as My professor told me that output and feedback topologies are two different things and just because the output is shown to be voltage it doesn't conforms that feed backed quantity be voltage. – SUNITA GUPTA Jun 21 at 13:33
• .. as My professor told me that .. for nearly all of your questions: why not ask the professor? (S)he's paid to teach you, if something is unclear then you asking questions elsewhere doesn't help making this person a better professor (due to lack of feedback, yes, pun intended: -) ). Also: discuss with your fellow students, having a discussion about things can often really help. – Bimpelrekkie Jun 21 at 13:50
• @Bimpelrekkie You see it was online but logically he held class so he happened to be my professor but their was no option of feedback.So I asked doubt here.And let me get it straight neither are problems home work nor am I trying to judge professor (In fact the concepts he had taught are a way clearer) but the drawback was no feedback so doubts cannot be discussed . Plz clear this or I will have no option but cram "feed back from collector => voltage feedback" – SUNITA GUPTA Jun 21 at 16:13
• For sure we have a global negative feedback loop. And we are sample the voltage. Because If we short the load and the feedback goes to zero (output voltage goes zero), that's voltage feedback. And the feedback signal is in parallel (shunt) with the input. Therefore we have voltage-parallel feedback. – G36 Jun 21 at 16:33