Fundamentals on DC motor

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Write one page of fundamentals on the DC motor below.
https://www.mcmaster.com/6409K27/
Give plenty of TECHNICAL background to the DC motor. Include theory and equations in this section. Briefly identify the users and clients and their needs. Do not include extemporaneous information that is not pertinent to the problem or solving the problem. The background should not include political or societal constraints; this is a technical report and focuses on the engineering that is necessary for solving the problem. 3 References are required in this section.