Jee Advanced
Current Electricity
IIT-JEE 2007 Paper 1 Offline
MCQ+3 / -12007
A resistance of 2 \(\Omega\) is connected across one gap of a metre-bridge (the length of the wire is 100 cm) and an unknown resistance, greater than 2 \(\Omega\), is connected across the other gap. When these resistance are interchanged, the balance point shifts by 20 cm. Neglecting any corrections, the unknown resistance is