Resistance in RC circuit of time constant 2 seconds is 1000 ohms. What is value of C in the circuit? Answer in micro farad
Answers
Answer:
If you are asking this question, you must be enrolled in some kind of electrical engineering course. And if you made it that far, simple algebra like this should be a snap.
A=B/C
C*A=B
C=B/A
Very common relationship in all of math, engineering, physics, all the sciences. These three equations are all the same formula, right. Lets make B=15 with A=3 and C=5
So 3=15/5 And 5*3=15, right. And 5=15/3 right? You can do this stuff in your head.
So if T=RC where T is the time constant, R is the resistance and C is the capacitance, you should be able to start at it and move things around in your head. T/C=R and T/R=C Just like the example above. You want C so divide T by R or 2/1000
Two thousandths. .002 farad right? Or 2 millifarad (not a commonly used metric prefix for caps) But 2000 microfarad is a common unit (as already answered).
If you are serious about pursuing an education in electronics, you really need to develop the mental ability to just stare at a problem like this for a few seconds and write down the answer. Memorize the 3–5–15 fraction and all of its variants and be able to manipulate them in your head. The 3 and the 5 can switch places with each other if the 15 is in the numerator. And the two values not in the numerator can be multiplied by each other to equal the numerator. You need to know this fraction relationship like you know how to breathe.
Answer:2000mf
Explanation:
