a) What is the direction of the magnetic force on the current in each of the six

Question

a) What is the direction of the magnetic force on the current in each of the six cases shown below?

b)   Two insulated current-carrying wires (wire 1 and wire 2) are bound together with wire ties to form a two-wire unit. The wires are 2.59 m long and are stretched out horizontally parallel to each other. Wire 1 carries a current of I1 = 8.00 A and the other wire carries a current I2 in the opposite direction. The two-wire unit is placed in a uniform magnetic field of magnitude0.400 T such that the angle between the direction of I1 and the magnetic field is 68.5

Explanation / Answer

a)

(-j) x k = -i

to the left

b)

j x i = -k

into the page

c)

i x (-k) = j

to the top

d)

i x (-i) = 0

e)

-k x j = i

to the right

f)

k x (-i) = -j

to the top

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