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Question
A meter bridge is balanced with a known resistance (R) in the left hand gap and an unknown resistance (S) in the right hand gap. Balance point is found to be at a distance of 1 cm from the left hand side. When the battery and the galvanometer are interchanged, balance point will ______.
Options
Shift towards left.
Shift towards right.
Remain same.
Shift towards left or right depending on the values of R and S.
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Solution
A meter bridge is balanced with a known resistance (R) in the left hand gap and an unknown resistance (S) in the right hand gap. Balance point is found to be at a distance of 1 cm from the left hand side. When the battery and the galvanometer are interchanged, balance point will remain same.
Explanation:
The balance point remains constant even if the galvanometer and batteries are switched out.
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