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What is the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic fields. E and B are also perpendicular to each other and have magnitudes 7500 V/m and 8.5x10-3 T, respectively. Express your answer to two significant figures and include the appropriate units. ? Value Units V = Submit Request Answer Part B What is the radius of the electron orbit if the electric field is turned off? Express your answer to two significant figures and include the appropriate units. µA ? Value Units r = Submit Request Answer
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Transcribed Image Text:What is the velocity of a beam of electrons that goes undeflected when moving perpendicular to an electric and magnetic fields. E and B are also perpendicular to each other and have magnitudes 7500 V/m and 8.5x10-3 T, respectively. Express your answer to two significant figures and include the appropriate units. ? Value Units V = Submit Request Answer Part B What is the radius of the electron orbit if the electric field is turned off? Express your answer to two significant figures and include the appropriate units. µA ? Value Units r = Submit Request Answer
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