An electron is moving at a speed 2 times 10^6 m/s in the direction shown in the

Question

An electron is moving at a speed 2 times 10^6 m/s in the direction shown in the figure below. 2 cm away, there is an infinitely long wire carrying 9A of current. (a) Describe the direction of magnetic field produced by the current at the location of the electron Find (b) the direction and (c)magnitude of the magnetic force (in N) acting on the electron due to the magnetic field produced by the current. (a) Determine the magnitude the magnetic flux through a of side a (see the figure above) if one side is parallel to, and a distance straight wire that carries a current I. (b) If the loop is pulled away from the wire at speed v, what is induced in it? c) Does the induced current flow clockwise or counterclockwise? reasoning. You're standing 2.3 m horizontally from the edge of a 4 with your eyes 1.7 m above the water's surface. A diver holding a lake bottom shines the light so you can see it. If the light in makes a 42 degree angle with the vertical, at what horizontal distance diver from the edge of the lake? The image of a distant tree is virtual and very small curved mirror. The image appears to be 16.0 cm behind the mirror is it? Draw an appropriate ray tracing diagram to (b) what is its radius of curvature (in cm)?

Explanation / Answer

Given that

charge q=1.6*10^-19 c

velocity v=2*10^6 m/s

distance L=2 cm

current i=9 A

basing on the concept ampere's law

now we find the magnetic field of location on the rod

the magnetic field B=2*10^-7*i/l=2*10^-7*9/2*10^-2=9*10^-5 T

the direction of the magnetic field perpendicular to outside the rod

now we find the magnetic force

the magnetic force F=Bqv=9*10^-5*1.6*10^-19*2*10^6=288 N

the direction of the magnetic force is parallel to the square and rod

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