a stiff, straight horizontal wire of length 25 cm and mass 20 g is supported by

Question

a stiff, straight horizontal wire of length 25 cm and mass 20 g is supported by electrical contacts at its ends, but is otherwise free to move vertically upwards. The wire is in a uniform, horizontal magnetic field of magnitude .4 T perpendicular to the wire. A switch connecting the wire to a battery is closed and the wire flies upward, rising to a maximum height h. The battery delivers a total charge of 2 C during the short time it makes contact with the wire. Find the height h. PLEASE SHOW ALL STEPS, NOT JUST THE ANSWER.

Explanation / Answer

f= bilsin? , l= f/bisin?

20g = 0.02kg x 10 = 10n

then 10/(.4 x 2xsin?) = 5.10m

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