Ph142 Midterm Iiig

Summary

Find an unknown resistor in a 3-wire Kirchoff rule problem. Find the solenoid current necessary to cancel the magnetic field at the center of a loop of wire. Find the torque exerted on a wire loop. Find the energy stored in the magnetic field of a solenoid. Find the radiation pressure experienced by a disk illuminated by an isotropic source. Find the charge stored on a capacitor in a network. Find the potential needed to accelerate a charge so that it is not deflected in a velocity selector. This is the second practice problem. Calculate the deceleration of a slidewire generator bar. Find the change in potential energy as a dielectric is inserted in between two capacitor plates. Find the mutual inductance of a wire wrapped five times around a long solenoid. Find the current through one resistor in a resistor network. Find the internal resistance and emf of a battery.