Given a set of Helmholtz coils, how would you characterize the magnetic field in the center of the coils? Group of answer choices Varies quadratically Varies logarithmically Nearly circular Nearly uniform

In the figure, point P2 is at perpendicular distance R = 28.2 cm from one end of straight wire of length L = 13.8 cm carrying current = 0.665 A. (Note that the wire is not long.) What is the magnitude of the magnetic field at P2? Number Units

Consider the following figure. 1 (a) A conducting loop in the shape of a square of edge length = 0.300 m carries a current I = 9.20 A as in the figure above. Calculate the magnitude and direction of the magnetic field at the center of the square. HT magnitude direction ---Select--- (b) If this conductor is reshaped to form a circular loop and carries the same current, what is the value of the magnetic field at the center? magnitude direction ---Select--- HT

Three wires sit at the corners of a square, all carrying currents of 3 amps into the page as shown below. Calculate the magnitude of the magnetic field (in ×10-5 T) given by I3 only at the other corner of the square, point P, if the length of each side of the square is 1.2 cm.