There is a wire coil on the horizontal table. We look at him from above
a) How is the magnetic induction vector of the field directed at the center of the loop, if a current flows through it: clockwise? counterclock-wise?
b) In what direction do free electrons move along the loop (clockwise or counterclockwise), if the magnetic induction of the field created by the current in the loop is directed downward in the center of the loop? up?
a) if the current flows clockwise, then the magnetic induction vector is directed perpendicular to the plane of the loop from us, if the current flows counterclockwise, then the magnetic induction vector is directed perpendicular to the plane of the loop to us;
b) if the magnetic induction in the center of the loop is directed downward, then free electrons move counterclockwise, if the magnetic induction in the center of the loop is directed upward, then free electrons move clockwise.
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