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现用高中物理第二册(必修本,1995年10月第二版)第3页在“元电荷”一段写道:“我们知道,电子带有最小的负电荷,质子带有最小的正电荷,它们的电量的绝对值相等.一个电子的电量e=-1.60×10~(-19)C.”学习这段课文时,就有学生提出疑问:一个电子的电量是-1.60×10~(-19)C,如用元电荷做单位,从这里看应该等于e,但课文第4页开头却是“把1.60×10~(-19)C叫做元电荷,”那么一个电子的电量就又必须记为-e.这不是自相矛盾吗?为了答复学生的质疑,本人查阅了《中学物理教师手册)(上海教育出版社,1984年2月第一版),发现在第146页上有一处说明:“物体所带电荷的量值是不连
The current high school physics second volume (required, second edition, October 1995), page 3, reads in the paragraph “Yuan Charge”: “We know that electrons have the smallest negative charge and protons have the smallest positive charge. The absolute value of their power is equal. The power of an electronic e = -1.60 × 10 -19 C.“ When studying this text, some students questioned that the power of an electronic device is -1.60×10 - -19) C. If you use units of elementary charge, you should see e equal to this point, but at the beginning of page 4 it reads that ”1.60 × 10-19 C is called the elementary charge,“ then the power of an electronic device is again Must be recorded as -e. Is this not self-contradictory? In order to answer questions from students, I consulted the ”High School Physics Teacher’s Manual“ (Shanghai Education Press, first edition, February 1984), and found on page 146. Explanation: ”The amount of charge that the object carries is not connected.