The drawing shows four situations in which two very long wires arc carrying the same current, although the directions of the currents may he different. the point p in the drawings is equidistant from each wire. which one ( or more ) of these situations gives rise to a zero net magnetic field at p? ( a ) 2 and 4 ( b ) only i ( c ) only 2 ( d ) 2 and 3 ( e ) 3 and 4 three long, straight wires are carrying currents that have the same magnitude. in c the current is opposite to the current in a and b. the wires are equally spaced. each wire