Learning Direct Current Circuit from Alan Selby, Ph. D

A lot of direct currents documents found in his site that we can learn. some of the documents are hand writing,, so just like facing your lecturer.

Sample document found

Learning direct current (DC) from School for Champions

Learning direct current (DC) from School for Champions by Ron Kurtus.
Starting with introduction of direct current or DC electricity than folowwed by  electrical circuit, voltage, current and resistance.

Electrical circuit,