An electron passes by a wire carrying a current I. The velocity vector of the el
ID: 1792332 • Letter: A
Question
An electron passes by a wire carrying a current I. The velocity vector of the electron is parallel to the wire as shown in the figure below.
Finish the following statements with to the left, to the right, toward the top of the page, toward the bottom of the page, into the page or out of the page.
A) The direction of the magnetic field due to the wire in the region near the electron is ______________.
B) The direction of the force on the electron due to the magnetic field caused by the wire is _____________.
Explanation / Answer
(A)
If conventional current ( positive to negative)
The direction of the magnetic field would be out of the page.
If electron current ( negative to positive)
Direction of the magnetic field would be into the page.
(B)
If conventional current ( positive to negative)
Direction of the force would be toward the bottom of the page.
If electron current ( negative to positive)
Direction of the force would be toward the top of the page.
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