Two resistance R1 and R2 are connected parallel. What is their equivalent resistance if R1=+-100 and R2=200+-4.
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Worst case errors are when both resistors are maximum, and when both are minimum. The center resistance is 100//200 which is 66.66667 ohms.
103//204
Rt = 1/(1/103 + 1/204) = 68.44300 ohms which is 1.77633 or 2.66%
97//196
Rt = 1/(1/97 + 1/196) = 64.88737 ohms which is -1.77930 ohms or -2.67%
As you can see, it isn't -quite- symmetrical, but for these numbers, very close.
Update: I don’t know why this was voted as no longer relevant. The question has not changed, nor have the laws of physics nor the rules of mathematics. If you think my answer is incorrect, I welcome suggested edits or corrections in comments.
103//204
Rt = 1/(1/103 + 1/204) = 68.44300 ohms which is 1.77633 or 2.66%
97//196
Rt = 1/(1/97 + 1/196) = 64.88737 ohms which is -1.77930 ohms or -2.67%
As you can see, it isn't -quite- symmetrical, but for these numbers, very close.
Update: I don’t know why this was voted as no longer relevant. The question has not changed, nor have the laws of physics nor the rules of mathematics. If you think my answer is incorrect, I welcome suggested edits or corrections in comments.
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r equivalent= 1/100 +1/200)
re = 3/200
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re = 3/200
hope it helps
glad you like it
mark as brainlist
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