Rankers Physics

Magnetic Field Due to Straight Current Carrying Wire: Practice Problem & Solution

A ring of radius r is carrying a current I. The magnetic field B is always perpendicular to the ring as shown in Fig. The force on the ring is : Magnetic Field Due to Straight Current Carrying Wire diagram: A ring of radius r is carrying a
2 I r B
I r B
zero
2 π r IB

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1. A long wire carrying a current of 2 A is laid along the x axis (current flows along positive x direction) and another wire carrying current of 4 A is laid along y axis(current flows along positive y direction). The points at which magnetic field is zero are:
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