1) Two long conducting wires are 30 cm apart. One carries acurrent of 25 A, and the other carries a current of 65 A. Find all locations where the net magnetic field of the two wires are zero if the currents are:
A) In the same direction
B) In opposite direction
2) A solenoid is designed to produce a magnetic field of0.034 T at its center. It has a radius of 2.0 cm, and is 35 cm inlength. It can carry a maximum current of 12 A.
A) What is the minimum number of turns per unit length thatthe solenoid must have?
B) What is the required total length of the wire?