3) A long straight wire carries a current of 1.3 A. An electron is 2.3 cm from the wire and initially moving atspeed 7.2 x 106 m/s in the opposite direction as the current in the wire.a) The electron is moving in the magnetic field from the wire. Calculate the magnitude of the magnetic forceon the electron.b) Which of the following correctly describes the direction of the magnetic force on the electron?A) The magnetic force on the electron is directed toward the wireB) The magnetic force on the electron is directed away from the wire

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Answered: 3) A long straight wire carries a…

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Can you answer problem 4? Can you also provide a short explanation for the answer you chose?