Three currents entering or exiting this page, run parallel to each other, as sho
ID: 2108929 • Letter: T
Question
Three currents entering or
exiting
this page, run parallel to each other, as shown in the figure.
The
three currents have magnitude I. The currents are
arranged
in a triangular structure. The triangle sides are 1 m long.
The points S and T are located at
the mid point of the
sides of the triangle while Y is at the center of the
triangle.
12. What is the direction of
the
magnetic field acting on the top wire due to the bottom
wires?
(A) No direction, zero
(B) Left
(C) Right
(D) Up
(E) Down
13. What is the direction of
the
magnetic field at the center of the triangle (point Y)?
(A) No direction, zero
(B)Left
(C)Right
(D)Up
(E)Down
14. What is the direction of
the
magnetic field, due to the three currents, at the midpoint of
the
bottom side of the triangle (point T)
(A) No direction, zero
(B)Left
(C)Right
(D)Up
(E) Down
15. What is the direction of
the force on the top current due to the bottom wires?
(A) No direction, zero
(B)Left
(C)Right
(D)Up
(E)Down
16. A positive charge moves
upwards within the page, just above the top current. What is the
direction of the force on this charge?
(A) No direction, zero
(B)Left
(C)Right
(D)Out of page
(E) Into page
17. Which pair of currents experiences a mutual attraction due to their
magnetic interaction?
(A) All three pairs of currents.
(B) The pair at the bottom.
(C) The top and left currents.
(D) The top
(E) None.
Explanation / Answer
the figure please..
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