A coil of unknown resistance is plaCre in the left gap of meter bridge and a resistance R is placed in right gap. The null point i obtained 40 cm from left end. When a resistance of 10 Q is connected in series with the coi! and the same resistance R is kept in right gap, the null point is obtained at the centre of wire. Find resistance of coil.

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
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A coil of unknown resistance is placred
in the left gap of meter bridge and d resistance
R is placed in right gap. The null point is,
obtained 40 cm from left end. When
resistance of 10 Q is connected in series with
the coi! and the same resistance R is kept in
right gap, the null point is obtained at the
centre of wire. Find resistance of coil.
Transcribed Image Text:A coil of unknown resistance is placred in the left gap of meter bridge and d resistance R is placed in right gap. The null point is, obtained 40 cm from left end. When resistance of 10 Q is connected in series with the coi! and the same resistance R is kept in right gap, the null point is obtained at the centre of wire. Find resistance of coil.
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