Direction of the Current through the loop before t = 0 s CAN PICK ONLY ONE OF TH
ID: 1381392 • Letter: D
Question
Direction of the Current through the loop before t = 0 s
CAN PICK ONLY ONE OF THE CHOICES LISTED:
A) clockwise
B) counter clockwise
C) there is no current at this time
Direction of the Original Magnetic Field
(the field not created by any current in the loop)
CAN PICK ONLY ONE OF THE CHOICES LISTED:
A) into the page
B) out of the page
C) clockwise
D) counterclockwise
Change in magnetic flux for loop after t = 0 s
CAN PICK ONLY ONE OF THE CHOICES LISTED:
A) increasing
B) decreasing
C) the flux is constant at this time
Direction of the Induced Magnetic Field after t = 0 s
(at the loop's center)
CAN PICK ONLY ONE OF THE CHOICES LISTED:
A) into the page
B) out of the page
C) clockwise
D) counterclockwise
E) there is no induced magnetic field at this time
Direction of the Induced Current through the loop after t = 0 s
CAN PICK ONLY ONE OF THE CHOICES LISTED:
a) into the page
b) out of the page
c) clockwise
d) counterclockwise
e) there is no induced current at this time
(f)Direction of the Current through the loop before t = 0 s
CAN PICK ONLY ONE OF THE CHOICES LISTED:
A) clockwise
B) counter clockwise
C) there is no current at this time
(g)Direction of the Original Magnetic Field
(the field not created by any current in the loop)
CAN PICK ONLY ONE OF THE CHOICES LISTED:
A) into the page
B) out of the page
C) clockwise
D) counterclockwise
(h)Change in magnetic flux for loop after t = 0 s
CAN PICK ONLY ONE OF THE CHOICES LISTED:
A) increasing
B) decreasing
C) the flux is constant at this time
(i)Direction of the Induced Magnetic Field after t = 0 s
(at the loop's center)
CAN PICK ONLY ONE OF THE CHOICES LISTED:
A) into the page
B) out of the page
C) clockwise
D) counterclockwise
E) there is no induced magnetic field at this time
(j)Direction of the Induced Current through the loop after t = 0 s
CAN PICK ONLY ONE OF THE CHOICES LISTED:
a) into the page
b) out of the page
c) clockwise
d) counterclockwise
e) there is no induced current at this time
Explanation / Answer
f) c) there is no current - (since before t=0 , the magnetic field is constant so there is no flux change and hence no induced current)
g) B) out of the page
h) B) since the magnetic field is decreasing ,
i) B) since the magnetic flux is decreasing due to decrease in external magnetic field , the induced magnetic field will be in such a direction so as to increase the external magnetic field.
j) d) counter clockwise
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