Parallel plate capacitor. Plates have area of 2x2cm2 and interplate seperation is 1mm. Insulator inside capacitor has dielectric constant εr=4. Voltage across capactior has 10V amplitude.
A) Find displacement current density Jd inside capacitor if voltage is V(t)=10sin(ωt) with frequency (i)60Hz, (ii) 6kHz.
B) Draw graph of amplitude of total current through capacitor as a funciton of f
C) Draw graph of rms value of total current as function of f.