The 2N5459 has a rating of gmo VGS(off) = -8 V. = 4 ms determine the value of gm at VGs = -3 V. For this JFET,

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4. Draw the VIN-VOUT characteristic over the range −10V < VIN < +10V. R₁1 = 6200. The zener diode has parameters Vf 0.7 V and VZK = 5.1 V. Assume an ideal zener, i.e. don't worry about the dynamic resistance. = UIN R₁ www VOUT =

For the given circuit find the VRL Voltage of the load; VR Voltage in the resistance R; Iz Current of the Zener diode and the Pz Power in the Zener diode. VRL = ? Iz = ? Pz = ? If the Zener diode in the figure has an elbow tension of 0.7 V. Zener breaking voltage of VZ = - 15 V Vin = 40 V R = 1 kohm RL= 3 kohm Requirement: Take out Vth by mesh method and solve equations

1. The no-load terminal voltage of a battery is 30 V. The terminal voltage drops to 22 V when supplying a current of 5 A. Determine the emf and the internal resistance of this battery. Ans. r= 1.6 ohm 2. Two identical zinc carbon batteries are available. When connected in series, they supply 0.5 A to a 4 ohm resistor. When connected in parallel, they supply 0.4 A to a 5 ohm resistor. Determine the emf and internal resistance of each battery. Ans. 2.667 V and 3.333 ohm 3. When supplying a current of 5 A, the terminal voltage of a battery is 15 V. The battery is then recharged at a rate of 3 A and the terminal voltage is found to be 21 V. Determine the emf and the Internal resistance of the battery. Ans. 18.75 V and 0.75 ohm 4. A battery with an emf of 12 V and an internal resistance of 0.8 ohm is to be recharged through a 20 V source. (a) show by means of a diagram the connection of the circuit elements. (b) What is the current in the circuit? (c) The recharging current is to be…

The three phase full wave uncontrolled rectifier has a three-phase source of 444 V rms line-to-line, and the load is a 30 ohm resistance in series with a 50-mH inductance. Calculate the average load current. In this question, take 2 digits after the comma and take pi = 3,14; enter your answer into the system in terms of the desired unit only as a number.

1. You are to design a diode clipper circuit that will keep high voltage spikes from a 'noisy power supply from reaching sensitive electronics. A conventional silicon diode is used as part of the design. The clipper circuit is to be designed so that voltages 2 Resistor 10 volts are 'clipped'. SI Diode Vin from noisy Vout to electronics a) What would a suitable Zener breakdown voltage be? source Zener Diode b) From the manufacturer's specifications sheet, what would be a good choice for the Zener diode (i.e. what part number? 1Nxxx)? Why? c) If you want to 'clip' voltages that are s-10 volts as well, show how you would modify the circuit.

Q 5. Find the values of I and V in the circuits shown in Figure. Assume Ideal SI Diode.

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