Q1. A charge of -3.0 nC is at the origin and a second charge of 13.0 nC is at x = 8.00 m. Find the magnitude and direction of the electric field halfway in between the two charges.
Q2. A square conducting loop 25cm on a side lies at right angles to a uniform magnetic field. The loop's resistance is 7, and it carries a current of 20mA. At what rate is the magnetic field changing?