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A meter bridge is set up is as shown determine as unknown resistance `X` using a standerd `5 ohm` resistor The galvanometer shown nall point when topping key is at `44cm` mark The end corections see `1cm` and `2cm` respectively for the ends `A` and `B` The determine value of `X` is A. `4.12 ohm`B. `3.88ohm`C. `4.22 ohm`D. `4.77 ohm` |
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Answer» Correct Answer - b Using the condition for balanced Wheatstone bridge we get `(X)/(5) = ((44+1))/((100- 44+2)) = (45)/(58)` or `X = (45 xx 5)/(58)= 3.88 Omega` |
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