Q1. A hula hoop of radius 1.0m is in a uniform electric field with magnitude 1.4 X 10^2 N/C. its normal is parallel to the field. What is flux through the hoop?
Q2. A 430 microF capacitor is charged to 245 V. after that a wire is connected between the plates. How many joules of thermal energy are produced as capacitor discharges if all of the energy that was stored goes into heating the wire?