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Current Electricity question

2007 · Shift 1 · Q45

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PYQ Library
JEE Advanced
Physics
Current Electricity
2007 · Shift 1 · Q45

Current Electricity question

2007 · Shift 1 · Q45

JEE AdvancedPhysicsCurrent ElectricityMCQ+3 / −1

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

A
3 $\Omega$
B
4 $\Omega$
C
5 $\Omega$
D
6 $\Omega$

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