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The current used in the arc discharge method is about _________

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The current used in the arc discharge method is about _________

(a) 100mA

(b) 200mA

(c) 300mA

(d) 400mA

I have been asked this question during an interview for a job.

The query is from Carbon Nano Tubes topic in chapter Nano Materials of Applied Chemistry

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Correct option is (a) 100mA

The explanation is: The current used in the arc discharge method is about 100mA. By arc discharge of graphite electrodes in presence of ionised gas to reach high temperatures.

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