Magnetic fields at two points on the axis of a circular coil at a distance of 0.05m 0.2m from the centre are in the ratio 8 : 1. The radius of coil is-------------.
Magnetic fields at two points on the axis of a circular coil at a distance of 0.05m 0.2m from the centre are in the ratio 8 : 1. The radius of coil is-------------.
Option 1 -
0.15m
Option 2 -
1.0m
Option 3 -
0.1m
Option 4 -
0.2m
-
1 Answer
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Correct Option - 3
Detailed Solution:Magnetic field on the axis of a circular coil at distance x from centre, B =
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