Consider the following figure

The current I_S in Amps in the voltage source, and voltage V_S in Volts across the current source respectively, are

Consider the following figure

The current in the 1Ω resistor in Amps is

A source v_s(t) = V cos 100 $$\pi$$t has an internal impedance of (4 + j3) $$\Omega$$. If a purely resistive load connected to this source has to extract the maximum power out of the source, its value in $$\Omega$$ shoud be

In the circuit shown below, if the source voltage V_s =100$$\angle$$53.13⁰V then the Thevenin’s equivalent voltage in Volts as seen by the load resistance R_L is