Question

Suppose that a parallel-plate capacitor has circular plates with radius R = 26 mm and a plate separation of 4.1 mm. Suppose also that a sinusoidal potential difference with a maximum value of 170 V and a frequency of 82 Hz is applied across the plates; that is,

V = (170 V) sin[2π(82 Hz)t].

Find Bmax(R), the maximum value of the induced magnetic field that occurs at r = R.

Answer 1

V = (1700) sin [2 (82 Hz)+] Radius (R = 26x103 1 Separation (d) = 4.1x10²m ! Angular freq. (W) = anf frequency (f) = 82H2 I W = 25x82 w =515.22 rad's & Bin - (Motor) du V = (Vmax ) als in wt) = V max .W. cos (wt) d . Max - dvor = (1700) (29x82) Cos ( 25x82 t) at => Cleanmar = (170) (20682) * at der Binduced as Marm - (Bind) mar = (useo Ryu x (W. Vmax) = (a +107) (8.854103) (0.035) (27x82) (170) 2 (4.1x103) Bmar=3.0885x10^(-12)T