I'm kind of new to electronics hence can anyone explain the question I've attached
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There are other assumptions that need to be made.Hint: This is nothing more than an ohms law question being that V=IR is all you need to know. Given is R and V.
Just eliminate the word minimum since the answer is unique."What minimum current in milliamps must the op-amp be able to supply so that Vo(t) = Vin(t)?"
This is either a badly worded question or a trick question.
Unless you have a good knowledge of the English language it would be difficult to answer this question.
It's a very straight-forward question. They are asking the reader to incorporate three concepts at once,"What minimum current in milliamps must the op-amp be able to supply so that Vo(t) = Vin(t)?"
This is either a badly worded question or a trick question.
Unless you have a good knowledge of the English language it would be difficult to answer this question.
And input voltage, and implies gain, and implies using ohms law.So the catch words in the question are minimum and milliamps?
If you are willing to accept any current value greater that or equal to the minimum, or willing to spend time arguing with students abiut why an answer above the minimum is wrong, yes. The experienced professor who added the word "minimum" (and underlined it) knows how to write a question with only one correct answer.So if we remove the catch words the question becomes:
"What current must the op-amp be able to supply so that Vo(t) = Vin(t)?"
True, good point. I 'assumed' the TS know's how an op-amp with feedback works.There are other assumptions that need to be made.
The problem is NOT the word minimum, its the word milliamp. It has no place there, since the problem can only be answered symbolically and symbols carry their own units.Just eliminate the word minimum since the answer is unique.
So you are saying that if V were to be 10 V and R were to be 100 kΩ, that you would accept as a correct answer someone saying that the opamp MUST be able to supply 100,000 mA of current?If you are willing to accept any current value greater that or equal to the minimum, or willing to spend time arguing with students abiut why an answer above the minimum is wrong, yes. The experienced professor who added the word "minimum" (and underlined it) knows how to write a question with only one correct answer.So if we remove the catch words the question becomes:
"What current must the op-amp be able to supply so that Vo(t) = Vin(t)?"
V is clearly volts, R is clearly ohms, so I must be Amps and I * 1000 would be milliamps. At least that's how I would grade it and I'm sure you'll find a reason to call everyone else wrong.The problem is NOT the word minimum, its the word milliamp. It has no place there, since the problem can only be answered symbolically and symbols carry their own units.
This is like saying that the height of an underpass is H and regulations require margin of at least D for a vehicle passing under it, so what is the maximum height of the a truck, in inches, that can legally pass under the bridge. It is improper to assume some arbitrary unit for H and D, at least not without specifying it explicitly as part of the answer.
The word "minimum" is redundant because of the presence of the word "must". But it doesn't do any harm and is a more explicit specification for many people.
I didnt say I would. I am just plenty aware of how students think when they are struggling to get ever possible point they can get. Clear questions result in clear answers and don't waste my time. Do you understand?So you are saying that if V were to be 10 V and R were to be 100 kΩ, that you would accept as a correct answer someone saying that the opamp MUST be able to supply 100,000 mA of current?
You're the one that said that any answer above the minimum would have to be accepted if the question was worded that way. So what are you saying now? That you might not accept an answer that you said would have to be accepted?I didnt say I would. I am just plenty aware of how students think when they are struggling to get ever possible point they can get. Clear questions result in clear answers and don't waste my time. Do you understand?