a parallel-plate capacitor is oriented horizontally and chargedso that there is an electric field of 50,000 V/m pointing up insidethe gap of 1cm, which is filled with air. a.) With the charge oneach plate remaining constant, the capacitor is immersed half-wayin an oil of dielectric constant K=2.5 What is now the potentialdifference between the plates? b.) If on top of the oil, water(K=80) is poured to completely fill the upper part of the gap, whatis now the potential difference between the plates? (since thismeasurement takes place over a short period of time, please treatwater as an insulator, not as a conductor.)
