The magnetic field of the Earth is similar inshape to that of a bar magnet, as shown inthe figure. If a proton from space enters theEarth's magnetic field to the left of theEarth, with a velocity of 8x107 m/s directedinto the page, and the Earth has a magneticfield strength of 1x10-5 T at this location;a) What is the magnitude of the force actingon the proton?b) What is the direction of the force actingon the proton?c) What is the radius of the resulting circulartrajectory that the proton will follow?

Given: The velocity of the proton directed into the page is v = 8 x 107 m/s The magnetic field…

Answered: The magnetic field of the Earth is…

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