中学物理解题中常用到一些特殊的解题方法,如极限法、微元法、等效法、极值法、图解法、类比法、隔离法、整体法、假设法、控制变量法等.对于具体问题灵活选择恰当的解题方法,可以起到事半功倍的效果.一、极限法例1如图1所示,半径为R的均 In the middle school physics problem solving, some special solution methods are usually used, such as the limit method, the micro element method, the equivalent method, the extreme value method, the graphic method, the analogy method, the isolation method, the holistic method, the hypothetical method, the controlled variable method, Specific issues Flexible choice of appropriate problem-solving methods, can play a multiplier effect. First, the limit law 1 shown in Figure 1, the radius of R are