SSC JE Electrical Engineering 2014 Set 2 Paper

Question : 146 of 200

Marks: +1, -0

Point out the WRONG statement.
The magnetising force at the centre of a circular coil varies :

Solution:

Net Magnetic field at the centre C of Circular Coil

B_x = {NI}/{2R}µ_0

So Directly Proportional to Number of Turn and Current and inversely Proportional to Radius.
So option (d) is wrong.

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