PROBLEM 84 (+4 points) The ilustration below shows a current carrying segment of

Question

PROBLEM 84 (+4 points) The ilustration below shows a current carrying segment of wire within a magnetic field (green). he arrow denotes the direction of the conventional current through the wire. Draw on the figure to identify the following: direction of electrons in wire, direction of the force acting on the electrons, and direction of the net force on the wire. Please label each clearly using the following labels: e, Fa, and F, respectively If the magnetic field has a strength of 1 T, the length of this segment is 1 meter long, and there are 101" electrons moving in every meter of this wire at a speed of 10' m/s, determine the current in the wire and the magnitude of the net force on the segment of wire.

Explanation / Answer

current I = n*e*v

v = speed of electrons

n = number of electrons per unit meter

e = charge of electron

I = 10^13*1.6*10^-19*10^7 = 16 A   <<<<======ANSWER

Magnetic force Fb = I*L*B*sintheta

L = length of the segment

B = magnetic field = 1 T

theta = 90

Fb = 16*1*1*sin90 = 16 N <<---------ANSWER

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