Physics-
General
Easy
Question
Net magnetic field at the centre of the circle O due to a current carrying loop as shown in figure is 
- zero
- perpendicular to paper inwards
- perpendicular to paper outwards
- is perpendicular to paper inwards if q
and perpendicular to paper outwards if 
and perpendicular to paper outwards if
The correct answer is: perpendicular to paper outwards
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physics-General
