A straight wire is carrying upward. Observed from above (i.e., looking downward

Question

A straight wire is carrying upward. Observed from above (i.e., looking downward toward the wire), the magnetic field lines are: radially outward. radially inward forming clockwise circles. forming counter-clockwise circles. Directed toward the observer. The north end of a bar magnet is pushed downward toward a wire loop in the plane of the paper. In which direction is the induced current, and which way is the induced magnetic field? Clockwise, into the paper Clockwise, out of the paper Counter-clockwise, into the paper Counter-clockwise, out of the paper There is no induced current. A bar magnet it falling through a loop of wire with constant velocity with the north pole entering first. As the north pole enters the wire, the induced current will be, as view from above clockwise counterclockwise zero along the length of the magnet An electron moves towards the East in the presence of an external magnetic field directed towards the South. What is the direction of the magnetic force? East south down towards the earth up from the earth The figure shown depicts two long parallel current-carrying wires. The current I is directed to the right of the page, and I' s directed to the left of the page. Find the direction of the force on I' due to I. left right up down An electron moves to the left, while a current directed to the right flows below it (see the figure). Determine the direction of the force on the electron due to the current out of the page into the page toward the top of the page toward the bottom of the page

Explanation / Answer

1) d)  forming counterclockwise circles (from Right hand Thumb Rule)

2) d)  Counter-clockwise, out of the paper.

3) a) Clockwise ( Lenz's Law )

4) d) up from the earth (Lorentz Force = F = q(v x B))

6) c) Towards the top of the page (Lorentz Force = F = q(v x B))

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