) An insulating material of 1 m length, 0.5 m width and 0.2 m thick is to be heated by dielectric heating. The power required is 500 W and frequency of 50 MHz is to be used. Assume that the input power factor of 0.05. If the plywood has relative permittivity of 5 and the absolute permittivity is 8.854 x 10-12. Compute, (i) The necessary voltage and the expected current that will flow through the material. (ii) The frequency required to obtain the same loss if the voltage is to be limited to 800V.

) An insulating material of 1 m length, 0.5 m width and 0.2 m thick is to be heated by dielectric heating. The power required is 500 W and frequency of 50 MHz is to be used. Assume that the input power factor of 0.05. If the plywood has relative permittivity of 5 and the absolute permittivity is 8.854 x 10-12. Compute, (i) The necessary voltage and the expected current that will flow through the material. (ii) The frequency required to obtain the same loss if the voltage is to be limited to 800V.

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

A) find Ztot in rectangular form B) find Ztot in polar form C) find V1 or VL in polar for. ( use voltage divider rule or ohm law).
Trial example of how to use Kirchhoff analysis to determine the initial current in each section along with its direction and the potential difference across the load
Solve thisthe topic is about : DELTA – WYE AND WYE –DELTA TRANSFORMATION
1.Enumerate five formulas for four series connected capacitances across Vt source and draw the circuit. 1. Enumerate five formulas for four parallel connected capacitances across Vt source and draw the circuit.
L The thermoelectric effect is the direct conversion of tomperature differences to electric voitage and vice versa oloctric voltage to temperature differenc ii. The Seebeck offect is the build up of an electric potential across a temperature grodient. L. Tho Poltior offoct is tha prosonco of temmperaturo difforoncos at an oloctrifiod junction of two difforont conductors. Which of the definitions given abovo are correct about thermal properties of matorials?
A utility company plans to connect a total of 20uF of capacitance to a 7200 volt line. To make this connection four capacitors will be connected in series. What is the capacitance of each capacitor? Answer is 80uF. Now what is the minimum AC voltage rating of each capacitor?
Explain the following 1. Diffrence between DC and AC Electricity. 2. how to convert rectangular form to polar form and polar form to rectangular form. 3. why need to improve a power factor
Show all work please and thank you :)
Two lossy capacitors with Equal capacitance values and power factors of 0.01 and 0.02 are in parallel, and the combination is supplied from a sinusoidal voltage source. The power factor of the combination is ?
8. Liquids with solid impurities a) Have higher dielectric strength b) Of large size have higher dielectric strength c) Have lower dielectric strength as compared to pure liquids d) None of the above 9. Peak to peak ripple is defined as a) the difference between average de voltage and peak value b) the difference between maximum and minimum de voltage c) the difference between maximum ac and average de voltages d) the difference between ac (rms) and average de voltages 10. In a Cockroft-Walton circuit, input voltage 100 kV load current 25 mA, supply frequency 100 Hz, each capacitor 10 nF. The optimum no. of stages for maximum output voltage is a) 1 b) 2 c) 10 d) 35
Exercise-1 Vs = 240V 60Hz Is=10A/....... Power system Is ww R 1k0 Xc=-j/(2pi60x0.00016)=-1994 XL=ZL=j2pifl=j2pi60x0.142=j53.54 142mH Is=Ir+IL+Ic=.........=Vs/Ztotal=....... 160μF
Let's say you measure t1/2 to be 0.037 seconds and the resistance in the circuit is 68 Ohms. Then what is the capacitance in micro Farads? Answer in micro Farads.