论文部分内容阅读
一、命题的时事型:(见本刊2002年4期P60140题)二、考查的方法型(01年吉林省)欲测定一定值电阻 R_X 的值,现给你一电压恒定的电池组,一个阻值已知的定值电阻 R_0,电流表、开关各一只,导线若干,请你利用上述器材设计出电路图,要求该电路的开关,只闭合一次能测出未知电阻 R_X,在右方框内画出电路图.“授之以鱼,不如授之以渔”在教学过程中,不能一成不变的传播知识,而应在传授物理
First, the topical current affairs of the proposition: (See the issue of P60140 in 2002 issue 4) Second, the method of examination (in Jilin province in 2001) To determine the value of a certain value of resistance R_X, give you a constant voltage battery pack, one Known resistance R_0, a current meter, a switch, a number of wires, please use the above equipment to design a circuit diagram, require the switch of the circuit, only once can be closed to measure the unknown resistance R_X, in the right box Draw a circuit diagram. “Teach the fish, instead of teaching them to fish ” In the teaching process, you can’t transfer the knowledge in an invariable way, but you should teach the physics