(a) Direction of the Current through the loop before t = 0 s ---Select--- clockw

Question

(a) Direction of the Current through the loop before t = 0 s ---Select--- clockwise counterclockwise there is no current at this time (b) Direction of the Original Magnetic Field
(the field not created by any current in the loop) ---Select--- into the page out of the page clockwise counterclockwise (c) Change in magnetic flux for loop after t = 0 s ---Select--- increasing decreasing the flux is constant at this time (d) Direction of the Induced Magnetic Field after t = 0 s
(at the loop's center) ---Select--- into the page out of the page clockwise counterclockwise there is no induced magnetic field at this time (e) Direction of the Induced Current through the loop after t = 0 s ---Select--- into the page out of the page clockwise counterclockwise there is no induced current at this time

Explanation / Answer

1. a) there is no current at this time. There is only an induced emf when the magnetic flux changes, and while the change is taking place. If nothing changes, the induced emf is zero.

b) out of the page

c) decreasing

d) out of the page, this is because the current will try to increase the magnetic flux through the coil.

e) counterclockwise, this is because the current tries to cancel the decrease in external flux.

f) there is no current at this time. There is only an induced emf when the magnetic flux changes, and while the change is taking place. If nothing changes, the induced emf is zero.

g) into of the page

h) increasing

i) out of the page, this is because the current will try to decrease the magnetic flux through the coil.

j) counterclockwise, this is because the current tries to cancel the increase in external flux.

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