An electron moves through a region of crossed electric andmagnetic fields. The e

Question

An electron moves through a region of crossed electric andmagnetic fields. The electric field, E=2000 V/m and is directedstraight down. The magnetic field, B= 0.80 T and is directed to theleft. For what velocity of the electron into the page will theelectric force exactly cancle the magnetic force? Answer is 2500m/s but I need to see this worked out! Willrate. An electron moves through a region of crossed electric andmagnetic fields. The electric field, E=2000 V/m and is directedstraight down. The magnetic field, B= 0.80 T and is directed to theleft. For what velocity of the electron into the page will theelectric force exactly cancle the magnetic force? Answer is 2500m/s but I need to see this worked out! Willrate.

Explanation / Answer

Electrostatic force = Magnetic force Eq = Bvq v = E/B = 2000/0.80 = 2500m/s

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