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1. Use the equation Ct = C1 + C2, 500mF + 300mF = 800mF or 800x10^-3F
   2) Appropriate equation is W=1/2 V^2 C
   W = (0.5)*(10^2)*800^-3 = 40J

The electric potential at a point in an electric field is the work done per unit charge when a point positive charge is moved from infinity to the point.

The resultant force is firstly a key-word that any examiner will notice and so it will benefit your chance of getting the marks straight away. It helps us describe whether the forces are balanced or wheth...

You would calculate the moment of a force on a object by first finding the distance of the force from the pivot point of the object. Following this, you would find the component of the force perpendicular...

A linear accelerator is built with several drift tubes that increase in length, at either end of each tube are electrodes that provide an alternating current. As a proton is a positively charged particle ...