The average power delivered to an impedance (4 − j3) W by a current 5 cos(100pi*t + 100) A is: a) 44.2 Wb) 50 Wc) 62.5 Wd) 125 WPlease show full detailed work and explain the steps.

Is the power factor in Question 6 a leading or lagging power factor? Explain your answer.

The rms value of v(t)=Vmaxcos(t+) is given by a. Vmax b. Vmax/2 c. 2Vmax d. 2Vmax

c) A heater with resistance 10 N is driven by an AC voltage source (120 V). For the circuit shown below, determine the following: 0.50 j5n Vs 120 V/50 Hz j1n Figure Ql i. The total circuit impedance, Zr, in polar form. 11. The supply current, I.. iiI. The phasor diagram indicating the supply voltage, V, and the supply current, 17 iv. Apparent Power, Real Power, Reactive Power and Power Factor. V. The heater output power. 100