Two concentric current loops lie in the same plane. the smaller loop has a radius of 3.6 cm and a current of 12 a. the bigger loop has a current of 20 a . the magnetic field at the center of the loops is found to be zero. what is the radius of the bigger loop?

Which of these statements best explains how the hydrosphere interacts with the atmosphere to affect global climate? mountains block rain clouds and cause changes in global rainfall and evaporation. humans burn fossil fuels to produce greenhouse gases which cause global warming. humans cut down trees which affects the amount of oxygen in different parts of the globe. greenhouse gases, like carbon dioxide, dissolve in oceans and prevent global warming.