J2446自感现象演示器-当阳市鑫科教学仪器有限公司
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J2446自感现象演示器

自感现象演示器主要用于演示电感在电路中通电及断电时产生的现象。电感在通电及断电时,由于绕组本身的电流变化而在绕组内部产生电磁感应现象,自感现象中产生的感应电动势要阻碍电流的变化,使得电流延迟或变大。本演示器自感现象的变化用灯泡来表示。通电时,与电感串联的灯泡要比与电位器串联的灯泡迟亮;断电时,回路中的灯泡突然变亮。
J2446 The Phenomenon of Self-Presentatio
It is used for the main demonstration in the inductor circuit in electricity and power generated. Inductance in the power and electricity, due to the current changes in the winding itself in winding Internal produce electromagnetic induction, resulting in the phenomenon of self induction of force to impede the current changes in current or delay big. This phenomenon of self-presentation of the changes come to light bulbs. Electricity, and light bulbs than the inductance tandem with the potential series of light bulbs later; power, the loop of a sudden change light bulbs.

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