Saturday, August 29, 2015

homework and exercises - Capacitance of spherical capacitor when earthed



The capacitance of a spherical capacitor is given by $$C=\frac{4\pi \varepsilon_{0}}{\left ( \frac{1}{a}-\frac{1}{b} \right )}$$


Spherical Capacitor


How can I find out the capacitance of the capacitor when



  1. The inner sphere is earthed.


  2. The outer hollow sphere is earthed.




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