Question

2. A circuit consists four straight wires, each length L, that form a square. Find the magnetic field at the center of this square, assuming there is a clockwise and constant current I in the circuit. Assume that the magnetic field of each wire is μ0I/2πr.

3. A positively charged particle moves horizontally to the right into a region where the magnetic field is constant and directed at a 45.0◦ angle with respect to the +x−axis. Find the initial force on the particle from the field.

4. The square wire loop from the second problem is embedded in a region of space where the magnetic field is described as in problem three. Find the force on each side of the square due to this magnetic field. Ignore the magnetic fields produced by the currents

Answer 1

2.

(since magnetic fields produced by each side of the square point in the same direction(into the page)).

3.

4.

(Into the page)

(Into the page)

(Out of the page)

(Out of the page)