3. Assume the values given in the circuit diagram above. The switch is in position (a) for a long time before being thrown into position (b). The switch is designed to make the contact at (b) before breaking the contact at fa) and the inductor is ideal. a. What is the magnitude and direction of the current (up/down/zero) through the inductor right after the switch is thrown? (hint: use Ohm's law) b. What is the magnitude and direction (up/down/zero) of the EMF induced in the inductor right after the switch is thrown? (Hint: use the loop rule.) The answer is not 30V, 50V, 80V or 100V. c. What is the magnitude and direction of the current (up/down/zero) through the inductor a long time after the switch is thrown? (Hint: the inductor acts like a short)

Please solve this question queckly

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)

Give an approximate sketch of the expected voltage waveform vi(t) for the circuit shown in Figure 7. The source produces a sinusoidal waveform with a maximum voltage of 12.6 V. Assume that the diode has a turn-on voltage of 0.7 V and that the reverse saturation current is approximately zero. 12.6 V AC 2 ΚΩ C Figure 7- Half-Wave Rectifier Now suppose a capacitor C is connected in parallel with the load as in Figure 8. Calculate a suitable value for C so that the RC time constant is about ~ 0.02 seconds. -2 ΚΩ + Give an approximate sketch of the expected v₁(t) waveform when C is added to the circuit. Qualitatively speaking, what is the role of a capacitor in this circuit? + VL VL VL volts VL volts

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