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JEE Main 2004 Physics question

PhysicsMoving Charges and MagnetismJEE Main 2004

The magnetic field due to a current carrying circular loop of radius 3 cm at a point on the axis at a distance of 4 cm from the centre is . What will be its value at the centre of the Loop?

Answer: (1)

Solution

, . Ratio $ = =

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Question ID VK-038340