大学物理(英语)a point charge q is placed at one corner of a cube of edge a.What is the flux through each of the cube surfaces?

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大学物理(英语)a point charge q is placed at one corner of a cube of edge a.What is the flux through each of the cube surfaces?
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大学物理(英语)a point charge q is placed at one corner of a cube of edge a.What is the flux through each of the cube surfaces?
大学物理(英语)
a point charge q is placed at one corner of a cube of edge a.What is the flux through each of the cube surfaces?

大学物理(英语)a point charge q is placed at one corner of a cube of edge a.What is the flux through each of the cube surfaces?
这个不难.
6个面,分两种情况.
1.3个面,都和点电荷相接的,通量为零.
2.3个面,不和点电荷相接的,通量不为零.
这个用二元定积分算一下就是了,自己算吧.
如果是我,我会用计算机来算这个积分.
另外,你们应该是大学物理课程里面学到这个问题的.
我的看法,这种问题就是计算繁一点,没多大意思,
但是考试时候不会考的.

char point(char*p) {p+=3;return *P} main() {char b[4]={'a','b','c','d'},*p=b; point(p);printf(c char point(char*p){p+=3;return *P}main(){char b[4]={'a','b','c','d'},*p=b;point(p);printf(c ,*p);}求输出结果, 大学物理(英语)a point charge q is placed at one corner of a cube of edge a.What is the flux through each of the cube surfaces? #include stdio.h void point(char *p) {p+=3;} main() { char b[4]={'a','b','c','d'},*p=b; point(p);为什么呢. C语言 point(char*pt); main() {char b[4]={'a','c','s','f'},*pt=b; pt=point(pt); printf(%cpoint(char*pt);main(){char b[4]={'m','n,'o','p'},*pt=b; point(pt);printf(%c\n,*pt);}point(char*p){ p+=3;}输出结果是什么啊? 为什 32.若有语句int *point,a=4;和point=&a;下面均代表地址的一组选项是( )A.a,point,*&a B.&*a ,&a ,*point C.*&point,*point,&a D.&a ,&*point ,point a point char * (a[50]) = {'a','b',char * a[] = {'a','b','c'};可以为什么char * a = {'a','b','c'};不可以 语句char *point[30],那么定义的point的含义是什么?急!拜托各位了 英语选择题(语法)We were just ___ calling you up_____you came in.A about ;when B on the point of; while C on the point of; when D on the point of;as c语言的选择题下面判断正确的是().A:char *a=china;等价于char *a;*a=china;B:char str[10]={china};等价于charstr[10];str[]={china};C:char *s=china;等价于char *s;s=china;D:char c[4]=abc,d[4]=abc;等价于char c[4] 大学物理A难吗? char a='a' ;cout 英语pivot point const char* a和char* const a的区别 下列语句组中,正确的是 A)char *s;s=”Olympic”; B)char s[7];s=”Olympic”; C)char *s;s={下列语句组中,正确的是A)char *s;s=”Olympic”; B)char s[7];s=”Olympic”;C)char *s;s={”Ol 请解释一下C语句char a[10],p;p=a=“china”的含义.下列说明不正确的是:(A)char a[10]=“china” (B)char a[10],p=a;p=“china” (C)char p;p=“china”(D)char a[10],p;p=a=“china”; mark a high point the point of a