Electrostatics and Capacitors
JUPEB Physics

(a) State Coulomb's law of electrostatics. (2 marks) (b) Two point charges of $+2\ \mu$C and $+3\ \mu$C are placed $30$ cm apart in air. Calculate the force between them and state whether it is attrac…

(a) Define the capacitance of a capacitor and state its SI unit. (2 marks) (b) A capacitor stores a charge of $20\ \mu$C when the potential difference across it is $5$ V. Calculate (i) its capacitance…