【實用教育app】Fundamentals of DC motor|最夯免費app-綠色工廠好玩App

An electric motor changes electrical energy into rotational mechanical energy. A motor works on the same principle as a galvanometer, except that there is no spring in motor so that the coil can rotate continuously in one direction. Here, students will learn in a systematic way the difficult concept behind the principle of a DC motor.

Also, we will learn about the construction, working, and uses of the DC motor. It consists of a rectangular coil of wire mounted on an axle, which can rotate between poles of a magnet. Each end of the coil is connected to half of a copper split ring, called a commutator, which co-rotates with the coil. Two carbon blocks, the brushes, are pressed tightly against the commutator by springs. The brushes are connected to a DC electrical supply to start the motor.

A quiz, key terms, the main image, and links to other websites are provided herewith. This helps us to revise and test whatever we have learnt so far.

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Keywords: education,physics,K12,3d animation,magnet,magnetic field,rule, brushes,left hand,rotational,inertia,coil