הייי יש לי שתי שאלות בפיזיקה...

[Leben2]

הייי יש לי שתי שאלות בפיזיקה...

משהו יכול לעזור? velocity v to the right. If i1 is greater than i2, then the force on q is north. If i2 = 0 and i1 is greater than zero, then the force on q is north. If i1 = 0 and i2 is greater than zero, then the magnetic field near charge q points into the page. If i1 = i2, then the wires are attracted to each other. If i2 = - i1 then the force on q equals zero. If v = 0, then the force on q is zero. If i2 = 0 and i1 is greater than zero, then the force on q points into the page. Incorrect. Tries 8/10 יש לכתוב על כל משפט נכון או לא נכון....תודה...

 

[Leben2]

וזאת השאלה השניה...

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...