An electron with mass, m = 9.11 x 10 kg, is moving at speed, v = 74 x 10³ m/s, perpendicular to the Earth's magnetic field where its strength is B = 1.71 x 10-6 T. SYMBOLIC INPUT. Use the given variables, m, v, and B, along with the fundamental charge, e (as needed). (1 of 3) Magnetic Force (a) Write a symbolic expression for the size of the magnetic force on the moving electron then calculate its numeric value. evB 2.02e-18 2.03e-18 N✔ FB = CUB (b) The magnetic force on the electron acts perpendicular O it will affect the electron's speed but not its direction it will affect the electron's direction but not its speed it will not affect the speed or direction of the electron (c) The electron will therefore follow a circular circular perpendicular path. to the electron's velocity so...

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An electron with mass, m = 9.11 x 10-³1 kg, is moving at speed, v = 74 x 10³ m/s,
perpendicular to the Earth's magnetic field where its strength is B = 1.71 x 10-6 T.
SYMBOLIC INPUT. Use the given variables, m, v, and B, along with the fundamental charge, e (as needed).
(1 of 3) Magnetic Force
(a) Write a symbolic expression for the size of the magnetic force on the moving electron then calculate its numeric value.
FB = evB
(b) The magnetic force on the electron acts perpendicular
it will affect the electron's speed but not its direction
it will affect the electron's direction but not its speed
it will not affect the speed or direction of the electron
evB
(c) The electron will therefore follow a circular circular
r =
mv2
F
2.02e-18
с
(2 of 3) Centripetal Motion
(d) What is the magnitude of the centripetal force of the electron?
Fc = 2.03e-18
N✔
KI
2.03e-18 N✔✔
(d) Write a symbolic expression for the radius of the electron's circular path then calculate its numeric value.
= 24.6
perpendicular
m
path.
to the electron's velocity so...
Transcribed Image Text:An electron with mass, m = 9.11 x 10-³1 kg, is moving at speed, v = 74 x 10³ m/s, perpendicular to the Earth's magnetic field where its strength is B = 1.71 x 10-6 T. SYMBOLIC INPUT. Use the given variables, m, v, and B, along with the fundamental charge, e (as needed). (1 of 3) Magnetic Force (a) Write a symbolic expression for the size of the magnetic force on the moving electron then calculate its numeric value. FB = evB (b) The magnetic force on the electron acts perpendicular it will affect the electron's speed but not its direction it will affect the electron's direction but not its speed it will not affect the speed or direction of the electron evB (c) The electron will therefore follow a circular circular r = mv2 F 2.02e-18 с (2 of 3) Centripetal Motion (d) What is the magnitude of the centripetal force of the electron? Fc = 2.03e-18 N✔ KI 2.03e-18 N✔✔ (d) Write a symbolic expression for the radius of the electron's circular path then calculate its numeric value. = 24.6 perpendicular m path. to the electron's velocity so...
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