Suppose that a circular parallel-plate capacitor has radius R0=3.0cm and plate separation d=5.0mm . A sinusoidal potential difference V=V0sin(2θt) is applied across the plates, where V0=150V and f=60Hz
Part A. In the region between the plates, find the magnitude of the induced magnetic field versus R and t , where R is the radial distance from the capacitor's central axis. Assume that B0(R) is the amplitude of the magnetic field.
Part B. Determine the numeric expression for the amplitude B0(R) of this time-dependent (sinusoidal) field when R≤R0 , and when R>R0