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Transformers used for power distribution are wound on cores made of ____.

A. iron or steel B. nonconducting materials C. aluminum D. antimony

Trades & Technology

?Welding shop owners ____.

A. ?have a high degree of skill and knowledge of small business management B. ?operate machines or automatic equipment used to make welds C. ?often help the welder by making small welds to hold parts in place D. ?demonstrate good management skills by planning jobs and assigning workers

Trades & Technology

A(n) ___________ is a configuration of PV cells laminated between a clear outer superstrate (glazing) and an encapsulating inner substrate.

a. solar cell b. module c. charge controller d. inverter

Trades & Technology

Above 1MHz an op amp approaches

A) open-loop gain B) about 60dB C) unity gain D) about 80dB

Trades & Technology