题目:电流表内电阻为100欧,通过1毫安电流时,指针偏转为一格如果要使该电流表指针偏转一格时,表示为1伏电压,那么该怎么办?如果要使该电流表指针偏转一格时,表示为1安电流,那么该怎么办?分析要解决上述问题,必须先弄清楚电压表,电流表的原理.电压表由灵敏电流表串联一至二个高阻值电阻组成(图1),它是串联电路 Title: The internal resistance of the ammeter is 100 ohms. When the current is 1 mA, the pointer is deflected to a grid. If you want to deflect the ammeter pointer to one grid, it is expressed as 1 volt. What should you do if you want to deflect the ammeter pointer? When one cell is indicated as 1 ampere current, then what should be done? Analysis To solve the above problem, it is necessary to clarify the principle of voltmeter and ammeter. The voltmeter consists of one to two high resistance resistors in series with sensitive ammeter (Figure 1). , it is a series circuit