Theresistance per unit length of a piece of a copper wire with circular cross-section with diameterof 1.03 mm is 2.5 x 10-4Ω/cm. concentration of free electrons is 8.4 x 1028/m3. The current densityis 2.1 x 106A/m2(Assume that the free hole concentration equal zero).

Select the best definition for wavelength. the height of an oscillating electromagnetic wave the rate at which electromagnetic waves oscillate. the distance between two crests of an electromagnetic wave. the oscillations of electric and magnetic fields select the best definition for frequency. the oscillations of electric and magnetic fields. the height of an oscillating electromagnetic wave. the distance between two crests of an electromagnetic wave. the rate at which electromagnetic waves oscillate