CBSE Class 10 Answered
i am aarthi .
I have doubts in these questions .
1 . Three resistors each of 2 ohms are connected together , so that their resistance is 3 ohms . draw a diagram to show this arrangment and check it by calculation .
2 . when two resistors of resistance R1 and R2 are connected in parallel , the net resistance is 3 ohms . when connected in series its value is 10 ohms . calculate the values of R1 and R2 .
Asked by palani002001 | 25 May, 2015, 01:01: PM
Expert Answer
1. R1 = R2 = R3 = 2 Ω
The resultant resistance is 3 Ω. Hence, the combination will be 2 resistors in parallel and their combination in series with the third.
The resistance between A and B is
This is in series with R3. So, we get
R = Rs + R3 = 1 + 2 = 3 Ω
NOTE: Kindly post the other question as a separate query.
Answered by Romal Bhansali | 26 May, 2015, 01:49: PM
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