Consider the force of an electromagnetic wave on the electrons in an antenna. Assume the amplitude of the electric field associated with the wave is E₀ = 200 V/m.
(a) What is the magnitude of the electric force on an electron? Express your answer in terms of e and E₀, and in newtons using the given value of E₀. 

(b) What is the magnitude of the magnetic force on an electron in the antenna? Express your answer in terms of e, B₀ (the magnetic field amplitude), and the speed v of the electron.
(c) Suppose v is the drift velocity of an electron. In Chapter 19 (Section 19.3), we found that for typical values of the current the drift velocity is about 0.01 m/s. What is the magnetic force on the electron? What is the ratio of the magnetic force to the electric force found in part (a)?
(d) At what speed v does the magnetic force on an electron equal the electric force?