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解答电学综合题,既是同学们学习的难点,也是中考的热点,因此,理顺知识,明晰思路,掌握方法是突破这一难点的关键.同学们之所以感到电学综合题难,是因为它涉及的知识面较多,系统性较强.它涉及的知识有:(1)电路和电路图;(2)串并联电路的特点;(3)欧姆定律;(4)电功;(5)电功率;(6)焦耳定律.
Therefore, it is the key to break through this difficult problem to straighten out the knowledge, clarify the way of thinking and master the method.The reason why the students feel that the electrical comprehensive problem is because it involves (1) circuit and circuit diagram; (2) characteristics of series-parallel circuit; (3) Ohm’s law; (4) electrical power; (5) electrical power; (6) Joule’s law.