Current Electricity and Electrical InstrumentMedium
Question
We shall observe in the galvanometer:
Options
A.Only the left-sided deflection
B.There will be no deflection irrespective of the position of the jockey
C.Only the right-sided deflection
D.Both right-sided and left-sided deflection and at balance point, no deflection
Solution
Sol. [Key Concept: Galvanometer deflection observation] - Position of null point will not change when galvanometer $(G)$ and the cell $(E)$ are interchanged.
- There will be no deflection in galvanometer only at balance point.
In an unbalanced meter bridge, if $E$ and $G$ are interchanged mutually, then the deflection in galvanometer may be towards left-side or right-side.
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