Consider an electron gyrating in the magnetic field associated with a sunspot which has a magnetic field strength of 0.25 T. a) Compute the cyclotron frequency wc of the electron in Hertz. b) The typical temperature of a sunspot is 3500 K. Use this temperature and the equipartition equation for velocity v, temperature T and mass m of a particle, that is, 3KBT v = m to compute the velocity of the electron in meters per second. Here, kB is Boltzmann's constant (1.38 x10-23 J/K). c) Calculate the Larmor radius rL of gyration of the electron. Compute and physically interpret the ratio of this radius to the radius of the Sun (6.96×10³ m). d) Calculate the centripetal acceleration a in m/s² of the electron as it gyrates along the magnetic field lines associated with the sunspot. e) Calculate the power P in Watts emitted by this electron as it gyrates along the magnetic field lines associated with the sunspot. f) Repeat Parts (a) through (e) for a proton.
Consider an electron gyrating in the magnetic field associated with a sunspot which has a magnetic field strength of 0.25 T. a) Compute the cyclotron frequency wc of the electron in Hertz. b) The typical temperature of a sunspot is 3500 K. Use this temperature and the equipartition equation for velocity v, temperature T and mass m of a particle, that is, 3KBT v = m to compute the velocity of the electron in meters per second. Here, kB is Boltzmann's constant (1.38 x10-23 J/K). c) Calculate the Larmor radius rL of gyration of the electron. Compute and physically interpret the ratio of this radius to the radius of the Sun (6.96×10³ m). d) Calculate the centripetal acceleration a in m/s² of the electron as it gyrates along the magnetic field lines associated with the sunspot. e) Calculate the power P in Watts emitted by this electron as it gyrates along the magnetic field lines associated with the sunspot. f) Repeat Parts (a) through (e) for a proton.
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only do parts f & g
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