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.

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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

For the circuit shown, determine the current through the 2+j5 ohms impedance. 1 22 jsn mm 2 B LOA D 15L280 ZAN jios 100 L² A 240 L

Reactive power supplied to improve the powerfactor of a 100W load from 0.7 to 0.9 is ____________ a. unity b. 34.9 VAR c. zero d. 53.58 VAR

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The admittance of a network is (0.05– j0.08) S. Determine the values of resistance andreactance in the circuit if they are connected (a) in series, (b) in parallel.

1. -) A sinusoidal voltage source in placed in series with a DC voltage source and produces an output of: v(t) = 70.7cos (377t) + 20 volts [ 70.7 = 50√2] Calculate: a. v²(t) b. Vrms C. The magnitude of the RMS current if the combined source is placed across a load of Z=4+j3 ohms (if you have trouble with part b, just assume a voltage of 100 Vrms for part c)

d. 565.685 V If a Load absorbs 20 kVA at a leading power factor of 0.6. Then the complex power is: Select one: O a. 12000 - j16000 VA O b.-12000 + j16000 VA O c. 12000 + j16000 VA O d. None of these Given the circuit below and the associated set of voltages and currents, the reactive Power developed by im voltage source is FENG300 MINTERM

Determine the effective resistance R of the network exhibited in the figure. Each Ris 2.2 2A sinusoidal alternating voltage has an rm.s, value of 200 V and a froquon