Yes I know, but I only need a solution for the question...so it is a good accuracy?That is correct in theory. In practice you may not be able to find a zener with that exact voltage.
I think you missed a word when you said, "the current must be little than 3ma"? Did you mean a little more? A little less? Judging from your answer, I'm guessing you meant a little less.I need to find the lowest zener voltage that will allow current in the following circuit, the current must be little than 3mA
My answer is: Vzener = 4.01V
Am I right?
Yes but I cannot write a number with so much zeros so i assume that 4.01v is a good accuracy to be an answer for this question, no?I think you missed a word when you said, "the current must be little than 3ma"? Did you mean a little more? A little less? Judging from your answer, I'm guessing you meant a little less.
Technically, the question is rather poor since it is asking for the lowest zener voltage but then giving an indefinite spec. If you say 4.01 V, then what is to prevent someone from saying that is wrong because a 4.001V would also meet the criteria yet have a lower voltage? And then someone else would claim that that is wrong because you could have a 4.0001V zener, and so on forever.
Since this is a homework section, the answer to the number of digits you carry out the answer is up to your instructor. Historically, I've rarely seen scientific notation to three significant digits.Yes but I cannot write a number with so much zeros so i assume that 4.01v is a good accuracy to be an answer for this question, no?
Actually, they did: "find the lowest zener voltage...." But you are correct that I messed up and should have said "Vz>4V". My bad -- thanks for catching it.Hello,
Yes, it is wise to simply state that the zener voltage must be GREATER than 4 volts "Vz>4v" if they are really asking for a current LESS THAN 3ma, but then again they did not specify that it had to be close to 3ma.
by Jake Hertz
by Jake Hertz
by Jake Hertz