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CBSE Class 12-science Answered

what is the use of soft iron in the coil of galvanometer??
 
Asked by Samson Shaji Varghese | 17 Feb, 2015, 05:09: PM
answered-by-expert Expert Answer
A soft iron core is used in a moving coil galvanometer. The soft iron core attracts the magnetic lines of force and hence the strength of the magnetic field increases if we use soft iron core. Thus the sensitivity of galvanometer increases. Also the use of soft iron core makes the magnetic field radial (i.e the plane of the coil will be always parallel to the direction of magnetic field).
Answered by Jyothi Nair | 18 Feb, 2015, 08:56: AM
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