In the circuit shown assume the Line voltage is 220V, 50 Hz and the secondary peak voltage is 10 volt: The Peak -to- Peak Ripple voltage equals eeeee 00000 D3 RL · 220 Ω 1000μF D₂'

The circuit diagram below shows a Buck converter. Vdc iL L VL #D D O 8 (V dc is S Ť The voltage and currents in the circuit can be separated into an average quantity and a ripple quantity such that x (t)=X+Ax (t), where x (t) is the signal, X is the average and Ax (1) is the ripple function. If the circuit is operated in continuous current mode with a duty ratio 6, the volt-seconds balance equation for L is given by: V)-(1-8) V =0 - dc OSV (1-8) V = 0 0 O 8(V-V)-SV = 0 dc ic O SV - (1-8) V = 0 1₂ C RL V

3-9 An rms ac voltmeter and a peak-to-peak-reading ac voltmeter are to be used to determine whether three ac signals are sinusoidal. Deter. mine whether the signals are sinusoidal if the following readings are obtained First signal Second signal Third signal peak-to-peak reading = 35.26 V rms reading. - 12.00 V peak-to-peak reading - 11.31 V rms reading = 4.00 V peak-to-peak reading = 25.00 V rms reading -8.83 V

Determine the CH2 average value considering half-cycle. Write the values only in four decimal places. the correct answer is 0.4584. show the solution pls thank you.

so then how is Rth 0.8695 kOhms in the original explanation?

O a72 O051 O 1.06 The value of armature current in the waveform is 14 A, a - 54 degrees, and B-155 degrees. The RMS value of current is la BeT O2.80 0497 O79.38 O10.49 直。

Hi, please include all steps and explanations Will rate!

The question is in the picture below.

Consider the switching waveforms shown below, operating with a duty-cycle of 30%. Which statements correctly describe the switching circuit, load and circuit operation? (Multiple answers possible, but wrong answers will deduct marks) Voltage across load Voltage (V) 000 120 0000 100 80 60 40 20 30 Time (us) The load must be predominantly resistive. The average current in the load is 1.0A. The RMS current in the load is approximately 1.414A. The load must be predominantly inductive. The resistive part of the load is 200ohms. The average current in the load is 0.6A. O The resistive part of the load is 50ohms. 0 0 10 20 40 50 60 Current (A) 2 5 0.5 0 0 10 Current through load 20 W 30 Time (us) 40 50 60

(b) Figure Q2(b) represents a single-line diagram of typical power system with the line impedances as indicated in pu on a 100 MVA base with a synchronous generator at Bus 1. The line charging susceptances are neglected. Calculate the bus voltages of V½ and V3 in pu using Gauss-Seidel method with the initial estimates of V, = 1+ j0 pu and V) = 1+ j0 pu. Perform only THREE (3) iterations. (0) (0) 1 230.5 0.01+j0.03 pu MW G 0.025+j0.05 pu 0.02+j0.04 pu 172.9 MVAR V1 = 1.0620°