In: Physics
A coil (resistance Rc), conductor (capacitance C) and a resistor (resistance Rr) are connected in a series a circuit with sinusoidal alternating current (amplitude A) power supply.
Calculate the theoretical current in the circuit by using Kirchhoff's 2nd law. Use a sinusoidal trial function for the current to solve the differential equation. Prove, that the sinusoidal current's amplitude depends heavily on the frequency.