设计型电学实验题是高考实验题中的热点题型,也是一种考查学生利用所学知识解决实际问题的好题目.这种题目对学生来说,往往觉得无从下手.其实,这类题目只要能做好如下五个步骤,问题就迎刃而解了:1.选择好合适的实验原理;2.设计好合适的电路;3.选择好规格合适的实验仪器;4.选择好滑动变阻器是接分压式还是接限流式;5.选择好“电流表内接”还是“电流表外接”.一、选择好合适的实验原理 Design-based electrical experiment questions is a hot topic in the college entrance examination test questions, but also a test of students to use their knowledge to solve practical problems a good topic.This problem for students, often feel unable to start.In fact, such topics as long as Can do the following five steps, the problem is solved: 1. Choose a suitable experimental principle; 2. Design a suitable circuit; 3. Select the appropriate specifications of the experimental equipment; 4. Select the sliding rheostat is then partial pressure Type or limit flow type; 5. Select a good “Ammeter in” or “Ammeter external ” First, select the appropriate experimental principle