OLSKFUH Science Experiment Diy Dc Ac Electrical Motor Model Physics Motor Model Demonstration Ac And Dc Generator Model Motor Model Principle Explainer Physics Teaching Instrument
OLSKFUH
This instrument is used in junior high school physics teaching to demonstrate the structure and working principle of DC motors and AC and DC generators. It is a multifunctional combined demonstration motor. This instrument is designed based on the principle that the energized coil rotates in the magnetic field and the closed coil rotates in the magnetic field to generate current. This instrument is composed of "u"-shaped bracket, armature, magnet, collector ring, electric brush, base, rocker and upper cover. The upper cover plate has a pair of terminal posts and is connected with the corresponding brush holder, which can be used for installing circuit boards and external power supplies. One end of the brush is installed on the brush holder, and the other end is in contact with the copper of the collector ring, and can move up and down along the brush holder to adjust the contact position. Requirements for power supply: When demonstrating the principle of DC motor, connect to DC power supply , and the voltage is 4V to 6V. The armature can rotate flexibly and speed up with the increase of voltage. Starting voltage 3.5V, running current 0.63A
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