In an EDM process using RC relaxation circuit, a 12 mm diameter through hole is made in a steel plate of 50 mm thickness using a graphite tool and kerosene as dielectric. Assume discharge time to be negligible Machining is carried out under the following conditions:Resistance                 40 ΩCapacitance              20 μFSupply voltage          220 VDischarge voltage    110 VAverage power input (in kW) is

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