A long, straight, horizontal wire in the plane of the computer screen has a curr
ID: 2199845 • Letter: A
Question
A long, straight, horizontal wire in the plane of the computer screen has a current flowing to the left. A metal loop, also in the plane of the computer screen, is falling downwards (velocity down, acceleration down) due to the force of gravity.
What direction is the magnetic force on the loop?
Right, the the plane of the screen.
Right and Up, in the plane of the screen.
Up, in the plane of the screen
Left and Up, in the plane of the screen
Left, in the plane of the screen
Left and Down, in the plane of the screen
Down, in the plane of the screen
Right and Down, in the plane of the screen
Into the plane of the screen
Out of the plane of the screen
Clockwise, in the plane of the screen
Counter Clockwise, in the plane of the screen
Zero. There is no direction because the quantity in the question has zero magnitude.
A)Right, the the plane of the screen.
B)Right and Up, in the plane of the screen.
C)Up, in the plane of the screen
D)Left and Up, in the plane of the screen
E)Left, in the plane of the screen
F)Left and Down, in the plane of the screen
G)Down, in the plane of the screen
H)Right and Down, in the plane of the screen
I)Into the plane of the screen
J)Out of the plane of the screen
K)Clockwise, in the plane of the screen
L)Counter Clockwise, in the plane of the screen
M)Zero. There is no direction because the quantity in the question has zero magnitude.
Explanation / Answer
E>> As the mag field is outward from the plane, by vxB product we get left direction of force!
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