A question in GATE 2012 Production and Industrial Engineering Paper with Solution has been updated:
Statement for Linked Answer Questions 52 and 53:
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  |
Capacitance | 20  |
Supply voltage | 220 V |
Discharge voltage | 110 V |
The time for one cycle, in milliseconds, is
- 0.89
- 0.32
- 0.55
- 0.24
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