A parallel plate air capacitor has a capacitance of 5 F. What is the electric field between two parallel metal plates separated by 2,5 cm with a potential difference of 3000V?
The electric field between plates of capacitor
"E=\\frac{V}{d}\\\\\n=\\rm\\frac{3000\\: V}{0.025\\: m}=1.2\\times 10^5\\: V\/m"
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