The value for a ZnO varistor is 15 and k₁=9.3 x 10-38, the potential difference and current being measured in volts and amps respectively. Calculate the p.d. across the varistor for currents of 0.1, 1, 10, 100 and 1000 A. If a device needs protection against transient voltages in excess of 300 V, show how a varistor having the characteristic defined above can be connected to afford protection.

The value for a ZnO varistor is 15 and k₁=9.3 x 10-38, the potential difference and current being measured in volts and amps respectively. Calculate the p.d. across the varistor for currents of 0.1, 1, 10, 100 and 1000 A. If a device needs protection against transient voltages in excess of 300 V, show how a varistor having the characteristic defined above can be connected to afford protection.

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

See similar textbooks

Similar questions

IRL RL In the circuit using a Zener diode above, given that V, = 10 V, R= 3.7 KO, R 6.8 KQ, and the Zener voltage Vz = 5 V. a) The current IRL through the load resistor is b) The current fiowing through the resistor R is:
a ): The depletion region is a layer of positive and negative charge in the semiconductormaterial Briefly explain how the depletion region formed in the semiconductormaterial after the PN junction is created.b): An audio signal amplifier is used to reproduce input audio signals at sound-producoutput elements, with desired volume and power levels. What is the function of volumecontrol and power amplifier in an audio signal amplifier ?
Kindly solve all the parts for me
Design a 15 V Zener regulator for the following conditions: 1) The load current IL ranges from 200 mA to 300 mA.2) The source voltage ranges from 21 V to 25 V. Based on your design results,a) Draw the Zener regulator circuit.b) Calculate the power ratings for both Zener diode and resistor Ri
Design a POWER SUPPLY with 5V output voltage. Use zener diode as a voltage regulator. Then solve for theoretical computations. Thanks!
Refer to the circuit. Consider ideal model (V_D=0) of diode circuits. Given V_i =100 Volts peak-to-peak sinusoidal input (+50, -50 Voltage peaks). Determine the peak output voltage during the diode non-conduction cycle.
A crystalline silicon photovoltaic cell has an open circuit voltage of 0.5V and a short circuit current of 1.8 A at Standard Test Conditions. What is the maximum output power at Standard Test Conditions and at a cell temperature of 50oC? What is the percentage decrease in power per oC? Assume a Fill Factor of 0.70 at 25oC. (As a rule of thumb for crystalline silicon solar cells, the increase in short circuit current is about 0.058% per oC while the decrease on open circuit voltage is 0.30% per oC and decrease in the fill factor is by 0.15% per oC).
Q.1) The step-down converter shown below has a pure resistive load of value 10 2. The input supply voltage is Vs=110 V. The switch (SW) can be assumed ideal. For a chopping frequency of value f= 5 kHz and a duty cycle of value 75 %, perform the following: a) Draw the waveforms of the voltages across the load resistance (R), across the switch (SW), and across the diode (D). b) Draw the waveforms of the currents in the load resistance (R), in the switch (SW), and in the diode (D). c) calculate the average value of the load voltage. d) calculate the rms value of the load voltage. e) calculate the power consumed by the load. f) calculate the effective input resistance of the converter. SW Vs D
Q10. Determine maximum and minimum value of Zener current if value of series resistance is 1 K, load resistance is 2KN and input varies from 10V to 30V. Zener voltage is 5 V. Q11. What is LED? Q12. Which materials are used in manufacturing of LEDS?
QUESTION 3 a. Design such a power supply with an input Voltage ranging from 10V to 15 V, and a limiting Resistor of 4.0 kn. Specifications of the Zener diodes are; Var is 8 V and Rz is 1000. Your task is to obtain regulated output Voltage within the input voltage range. b. With a diagram describe the operation of a clipper that can clip at two independent levels. c. In the circuit below, the values of Rc = 4.7 kN, RE = 3.3 kN, Vs = 4 V and also Vcc = 10 V and B = 100. Prove that the BJT is operating in the active mode. +10 V Re- 4.7 k +4 V R-3.3 kn
Find Idc, Vdc and the capacitance that will force the Vr(pp) to 3mV. Draw the output waveform across the capacitor. Fin=60Hz.
Briefly describe the operation of a silicon n-channel JFET, including effect of the gate voltages VG = 0 and VG < 0 and source-drain voltages Vos on the flow of charge carriers in the device before and after 'pinch-off'. Use an l-V graph to illustrate your answer. 4. Gate Source Drain FIGURE CREDIT: An Introduction to Semiconductor Devices, D. Neamen