What is the modulus of the induction vector of the magnetic field, in which the electron describes
| February 13, 2021 | education
What is the modulus of the induction vector of the magnetic field, in which the electron describes a circle with a radius of 3 • 10 ^ -5 m, if the electron’s velocity is 3.2 • 10 ^ 6 m / s?
q = 1.6 * 10 ^ -19 Cl.
R = 3 * 10 ^ -5 m.
V = 3.2 * 10 ^ 6 m / s.
m = 9.1 * 10 ^ -31 kg.
B -?
m * V2 / R = q * V * B.
The magnetic induction of the field B will be expressed by the formula: B = m * V / R * q.
B = 9.1 * 10 ^ -31 kg * 3.2 * 10 ^ 6 m / s / 3 * 10 ^ -5 m * 1.6 * 10 ^ -19 C = 0.6 T.
Answer: B = 0.6 T.
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