Two coils are connected in series in one gap of the Whetstone's meter bridge and null point is obtained at the centre of the wire, with the resistance of 100 2 in the other gap. When the two coils are connected in parallel in same gap, the known resistance is to be changed by 84 'to obtained the null point at the centre again. Calculate the resistance of the two coils.

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Two coils are connected in series in
one gap of the Whetstone's meter bridge and
null point is obtained at the centre of the wire,
with the resistance of 100 N in the other gap.
When the two coils are connected in parallel
in same gap, the known resistance is to be
changed by 84 2 to obtained the null point at
the centre again. Calculate the resistance of the
two coils.
Transcribed Image Text:Two coils are connected in series in one gap of the Whetstone's meter bridge and null point is obtained at the centre of the wire, with the resistance of 100 N in the other gap. When the two coils are connected in parallel in same gap, the known resistance is to be changed by 84 2 to obtained the null point at the centre again. Calculate the resistance of the two coils.
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