In the circuit shown below. Let V-33 V and i 28 mA and Voo -0.7 V: iD Vcos(at)V For t = Os, the current in the diode equals: Ca. 0 mA Cb. 2 mA Cc. 4 mA Od. 2 mA Ift = T/4, then the current in the diode equals: Oa. 8.92 mA Ob. 5.71 mA Oc 7.14 mA Od. 4.57 mA Ift- T/2, then the current in the diode equals: OB. 10.39 mA

Vi (t) = 10.sinwt Does not pass positive alternans when Volt input voltage is applied, only Design and explain two different circuits that pass negative alternans. Draw the input and output voltages. What are the types of these circuits? (Note: You can use the ideal diode approach)

The circuit below has a variable voltage vin as its input. We are interested in Vout as a function of Vin. In other words, if we vary the value of the voltage source vin, what will be the effect on the voltage Vout? The steps below will help you to investigate this question, and your answers will form the basis for a new design. Assume that the diode can be sufficiently modelled as simple diode with forward voltage of 0.7 V (you do not need Shockley's equation). Vin 100Ω M Vf = 0.7 V 2 V V out

A DA Vm sin cor For the following single-phase full-wave diode rectifier, Vm = 311 V, R = 1 N, L = 0.002 H and the source frequency is given as 50 Hz. Welding current Find the THD. Note: You can consider calculating the effective value of the welding current and the effective value of the fundamental wave of the welding current. ww