עוד שאלה...תודה אנשים 
Each of the shown conductors carries a current of 7 A either into or out of the plane of the paper. What is the value of the line integral B *dl for the path marked "A"? A cross stands for a current into the plane of the paper while a dot stands for a current flowing out of the plane of the paper. צרפתי תמונה...
Each of the shown conductors carries a current of 7 A either into or out of the plane of the paper. What is the value of the line integral B *dl for the path marked "A"? A cross stands for a current into the plane of the paper while a dot stands for a current flowing out of the plane of the paper. צרפתי תמונה...