At such close proximity, the electrons in the photovoltaic cell were being liberated by the electric fieldgenerated by the hot object, but the usual process of generating a current was going awry.
On top of that, the fieldgenerated by an alternating current interacts with the ground more strongly than it does with the air.
高空架线的话，由交流电产生的电磁场与地面的感应要比空中的电场交互作用强大得多。
3
Most MRAMs that are now being developed write data by applying the magnetic fieldgenerated by a current running through a wire near a tunneling magnetoresistive element to change the magnetization.