Solution to task 359 from Chertov´s for extramural stud

Solution to task 359 from Chertov´s for extramural stud

359. The space between the plates of the flat capacitor is filled with two layers of dielectrics: a layer of glass with a thickness of d1 = 0.2 cm and a layer of paraffin with a thickness of d2 = 0.3 cm. The potential difference between the plates is U = 300V. Determine the field strength E and the potential drop in each of the layers.