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Consider a parallel plate capacitor with an area of 2 cm^2 and a plate separation of 0.02 mm which is charged to a voltage of 2 kV. The work function for the electrons in the plate is 3.8 eV. Compare the electron tunneling current when there is a vacuum between the plates and the actual leakage current when there is a diamond between the plates. (resistivity 10^16 ohm*m)

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