(b) A dielectric containing a single discharging cavity can be represented by the circuit shown in Figure Q3 in which $C_e$ is the capacitance of that part of the cavity which discharges. If $C_a = 0.1 \, pF$, $C_b = 0.001 \, pF$, and $C_r = 0.01 \, pF$, and the voltage across the cavity at the instant of breakdown is 950V,
calculate:
a) The rms discharge inception voltage assuming a sinusoidal waveform.
b) The actual discharge magnitude.
c) The apparent discharge magnitude
d) The energy dissipated by a single discharge