Complex numbers circuit theory

A voltage generator has an internal impedance of 3+j8 ohms. this generator is connected to a load impedance of 20+j15 ohms.if the voltage accross the load impedance is to be 80+j0 volts, calculate the value of generator EMF E. A capacitor is now connected across the load impedance. by calculating the current drawn from the source E, for the values of capacitance 50,100 and 150 uF (micro farads), use a sutabel graph to find the value of capacitor such that the voltage across the load is in phase with the current drawn from the source E. for this value of capacitor, calculate the value of E. 50hz

Conductance

conductance Go= the parallel combination of 50 micro siemens and resistance 500 ohms . Show workings to give Go in siamens

Electrical networks

Engine consumes 5kw of power and a reactive power of 2kvar at current of (3+j2) Amps. Find the applied voltage in complex form V=(a+jb). Then use P=Re(VI*) and Q=IM(VI*) to form two simultaneous equations. Please show workings.

Three problems on resistive, inductive and capacitive circuits (determination of current and voltage)

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Electrodynamics: Circuits with Resistor, Inductor, Capacior

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