Consider an infinite planar slab whose central plane coincides with the xy plane and which conducts a current with a uniform current density jo in the ty direction. let the slab's thickness be w. use ampere's law in integral form to determine the magnetic field b that this slab cre- ates (at points both inside and outside the slab).

Balloon a has charge q, and identical mass balloon b has charge 10q. you hang them from threads near each other. choose all of the statements with which you agree. check all that apply. a. a and b exert the same magnitude forces on each other. b. the force that a exerts on b is 10 times the force that b exerts on a. c. the angle between the thread supporting a and the vertical is < the angle between the thread supporting b and the vertical. d. the force that a exerts on b is 1/10 the force that b exerts on a.