Question

The Leyden jar, invented by chance in 1746, was one of the earliest types of capacitors (see the figure below), made by covering the inner and outer surfaces of a glass jar with conducting layers (for example, aluminum foil). It is a good approximation to treat the Leyden jar as a parallel-plate capacitor. (

a) Find the capacitance for a cylindrical jar of height 19 cm and radius 4 cm, made of 3 mm thick Pyrex glass. (The dielectric strength of the Pyrex glass is 1.00 107 V/m.)

(b) What is the maximum charge that could be stored on it?

The answers should be 7.78e-10 F and 2.34e-5 C, but I odn't know how to get these answers

Answer 1

Solution 水-Avea 一つ一 ヒEoA ち 10