论文部分内容阅读
电学实验是高中物理的重点和难点,突出能力考查,题型变化多样,对学生综合水平有很高的选拔性,想掌握电学实验要从基础入手,则必须掌握下面五个问题.一、电表的改装常用的电压表和电流表都是由小量程的电流表G改装而成的.G的满偏电压和满偏电流一般都较小,在测量较大电压时需要串联一个大电阻将其改装为电压表,测量较大的电流时需要并联一个小电阻将其改装为大量程的电流表.
Electrical experiment is the focus and difficulty of high school physics, highlighting the ability test, test-type changes, the overall level of the students have a high selection, want to master the electrical experiment to start from the foundation, you must master the following five questions. The commonly used voltmeter and ammeter are modified by a small range ammeter G.G full-bias voltage and full-side current is generally smaller, in the measurement of larger voltage series resistance need to be converted to a Voltmeter, the measurement of larger currents need a small resistor in parallel to convert it into a large range of ammeter.