If the electro chemical machining (ECM) is to be used to cut pure iron with MRR of 800 mm³/min. Estimate the current required (in Ampere) _______, if given atomic mass of iron is 56 gm, ρ_Fe = 7.8 gm/cc & valency is 2.

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If the electro chemical machining (ECM) is to be used to cut pure iron with MRR of 800 mm3/min. Estimate the current required (in Ampere) _______, if given atomic mass of iron is 56 gm, ρFe = 7.8 gm/cc & valency is 2.