A manufacturer must produce large plane capacitors whose dielectric is mica (&r=7.5) and whose capacitance must...

 

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A manufacturer must produce large plane capacitors whose dielectric is mica (&r=7.5) and whose capacitance must be 0.47F. They must be able to withstand a voltage of 6kV while the maximum field that mica can withstand is 50kV/mm. Calculate the thickness and surface area of the mica sheet to use. Answer: 0.12mm, 0.85m Ex 10 What must be the dimensions S and d of a plane capacitor (&r=1) so that the stored electrical energy is 1J if the voltage between the plates is 1000V, the maximum field being able to be 8KV/cm? A manufacturer must produce large plane capacitors whose dielectric is mica (&r=7.5) and whose capacitance must be 0.47F. They must be able to withstand a voltage of 6kV while the maximum field that mica can withstand is 50kV/mm. Calculate the thickness and surface area of the mica sheet to use. Answer: 0.12mm, 0.85m Ex 10 What must be the dimensions S and d of a plane capacitor (&r=1) so that the stored electrical energy is 1J if the voltage between the plates is 1000V, the maximum field being able to be 8KV/cm?