Amy is standing on the positive x-axis, 2 m from the origin. River is standing o

Question

Amy is standing on the positive x-axis, 2 m from the origin. River is standing on the positive y-axis, 2m from the origin. A charge moves at a high speed from left to right along the x-axis, and Amy and River measure the magnetic field when the charge passes through the origin. Which statement is true about the strength and direction of the magnetic fields that they measure? Take the +z-axis to be in a direction out of the page, when the x- and y-axis are in the plane of the page.

Amy: strength of magnetic field = 0;

River: stength of magnetic field >0 and in +z direction

Is this right?

Explanation / Answer

It is like a line of charge
since it is moving in x direction, AMy will not feel any magnetic field
So Amy statement is correct

For River, magnetic field will be coming upward that is along positive x axis
So River statement is correct

Answer: Both are correct

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.