Q 47. Electrochemical machining is performed to remove material from an iron surface of 20mm × 20mm under the following conditions:
Inter electrode gap = 0.2mm
Supply voltage (DC) = 12V
Specific resistance of electrolyte = 2Ωcm
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: (A)
Explanation:
