A resistance of `2Omega` is connected across one gap of a meter bridge (the length of the wire is `100 cm`) and an unknown resistance, greater than `2Omega`is conneted across the other gap. When these resistances are interchanged, the balance point shifts by `20 cm`. Neglecting any corrections,the unknown resistance isA. `3 Omega`B. `4 Omega`C. `5 Omega`D. `6 Omega`

A resistance of `2Omega` is connected across one gap of a meter bridge

1.	A resistance of `2Omega` is connected across one gap of a meter bridge (the length of the wire is `100 cm`) and an unknown resistance, greater than `2Omega`is conneted across the other gap. When these resistances are interchanged, the balance point shifts by `20 cm`. Neglecting any corrections,the unknown resistance isA. `3 Omega`B. `4 Omega`C. `5 Omega`D. `6 Omega`
Answer» Correct Answer - A

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