Define an isotherm. How are they represented on the weather map?
Question 2
A flat coil of wire is placed in a uniform magnetic field that is in the y direction. The magnetic flux through the coil is a zero if the plane of the coil is: (More than one answer may be correct.)
1.in the xy plane
2.in the yz plane
3.in the xz plane
4.in any orientation, because it is a constant