Looking at the cross-sectional view of the toroidal solenoid below, which of the three amperian loops will yield 0 if you integrated around them? since the system is a toroidal solenoid, the number of current-carrying wires going into the page is equal to the number coming out of the page. all of the currents have the same magnitude.

a charge 3q is at the origin, and a charge −2q is on the positive x axis at x=a. part a where on the x-axis would you place a third charge so it would experience no net electric force? enter an expression for the exact answer, which will involve a square-root sign. (do not enter an approximate decimal answer.)

waves moving from a fast medium to a slow medium will experience a reflection as light travels more slowly than red light. total internal reflection occurs when the critical angle is.