Electrochemical machining is performed to remove material from an iron surface of 20 mm 20 mm under the following conditions: Inter electrode gap = 0.2 mm Supply voltage (DC) = 12 V Specific resistance of electrolyte = 2 ohm- cm Atomic weight of iron = 55.85 Valency of Iron = 2 Faraday's constant = 96540 Coulombs The material removal rate (in g/s) is

Electrochemical machining is performed to remove material from an iron

1.	Electrochemical machining is performed to remove material from an iron surface of 20 mm 20 mm under the following conditions: Inter electrode gap = 0.2 mm Supply voltage (DC) = 12 V Specific resistance of electrolyte = 2 ohm- cm Atomic weight of iron = 55.85 Valency of Iron = 2 Faraday's constant = 96540 Coulombs The material removal rate (in g/s) is
A.	0.3471
B.	3.471
C.	34.71
D.	347.1
Answer» B. 3.471

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