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The resistance in the gap of a metre ...

The resistance in the gap of a metre bridge is `10Omega` and the balance point 40 Cm from the left end .Calculate the value of unknwon resistance .

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`R/2 = 1/2 = l/(99-l) ` gives `l= 33 cm`
But we read the lengths as `l=33` cm and 100-33 = 67 cm and write `R/S = (33)/(67) = 0.4925`
Now , then we interchange the resistances, we should have `R/S = 2/1 = l/(99-l) ` which gives `l= 66` cm - But we read lengths as `l= 66` cm and 100 - 66 = 32 cm and write `R/S = (66)/(34) ` or R/S = (34)/(66)=0.5152` is 0.5038 and is very close to `1/2`
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AAKASH SERIES-CURRENT ELECTRICITY-EXERCISE (VERY ANSWER QUESTIONS)
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  9. Define one ohm.

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  18. What are good conductors? Give examples.

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