Four electric currents, equal in magnitude are arranged at the corners of a saua

Question

Four electric currents, equal in magnitude are arranged at the corners of a sauare as shown in the figure. Two currents go into the page, and two are pointing out of the page. Point a is at the center of the square, and points b and c are in the middle of two of the sides. What is the direction of the magnetic field at point a? O To the right. O Up (to the top of the page). O Down (to the bottom of the page). O The magnetic field is zero at this Oio the left oint. ????) Tries 0/3 What is the direction of the magneti field at point b? O Up (to the top of the page). O To the right. O To the left. O The magnetic field is zero at this point. Down (to the bottom of the page). ????) Tries 0/3

Explanation / Answer

By right hand rule magnetic field is zero at point a.

Up (to the top of the page) at point b.

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