A power line carrying a sinusoidally varying current withfrequencyf = 60Hz and peakvalue I0-55kA runs at a heightof 7.0 m acrossa farmer's land (see the figure). The farmerconstructs avertically oriented 2.0-m-high 11-turn rectangular wirecoil belowthe power line. The farmer hopes to use the inducedvoltage in thiscoil to power 110-Volt electrical equipment, whichrequires asinusoidally varying voltage with frequency f =60Hzand peak value V0 = 150 V. a) What should the length l of the coilbe?
