1.- Considering two elements in series where: v = 500 sin (250 t -40°) volts I= 25 sin (250t - 90°) amp. a) What are the elements of the circuit and their corresponding value? 1→ R V

can you show more step how to calculate Active and reactive power? S = P + Qj how to get P and Q?

Q- A buck converter feeding a variable resistive load is shown in the figure. The switching frequency of the switch S is 100 kHz and the duty ratio is 0.6. The output voltage Ve is 36 V, Assume that all the components are ideal, and that the output voltage is ripple-free. The value of R (in Ohm) that will make the inductor current (i) just continuous is 60 V + S 5 mH +1 Vo 36 V

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10 mH jok a resistor, capacitar eard inductor measure the resistoane R using Use to an ohm metere Measure the time constants for the two circuits below and find values of C and L I need help vith the building of this. circuit. 1f you could make them ánd find ans wer to the question abore, I would the C appretiate it gieatly

If v;(t) is a step voltage in the network shown in Figure 8, find the value of settling time such that a 20% overshoot in voltage will be seen across the capacitor if C = 1uF and L = 1H. CVo(t) Figure 8

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5. Suppose the following circuit is left open for a long time. 5000 22 24 V (a) What is the facial curren What is the carte II What is the ches What is the not the pos 80mF when we close thei 90s after we close the switch? dissipe the resistor 90s arter ene capacitor ons after we close the suit Close the switchi difference across the spacitor 008 after we close the switch across the resisto we close the swit 12 the potential (g) What is the energy stored in the capacitor 90s after we close the switch? (h) What is the energy dissipated by the resistor during the first 90s since the switch is closed?

The circuit in the figure is fed by a sinusoidal alternating voltage with a frequency of 50 Hz. The circuit consists of a resistor and a capacitor with the capacitance C= 600 μ Q. The power supplied to the circuit is P=400 W and the voltage across capacitor is UC=90 V. a) Calculate the current I. b) Calculate the resistance R. c) Calculate the voltage U (amount). d) Calculate the phase angle of the circuit