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OpenStudy (anonymous):
why we use dc power supply in thompson tube?
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OpenStudy (anonymous):
therwise, you would not have a continuous flow!! aslo, in his time, there was no AC currents
OpenStudy (anonymous):
thanx.
OpenStudy (anonymous):
can u tell me when we started to get AC current?
OpenStudy (anonymous):
just the turn of 20th century
OpenStudy (anonymous):
it was invented in about 1870 and was put into large scale use about 1890. Domestic use around 1900
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