The current in a radio measures 12 amps. the resistance of the radio is 4 ohms. what is the voltage? 3 v 48 v 3 a 48 ohms

Two models of the same compound are shown. in what way is model b better than model a? model b shows the types of elements in the compound, but model a does not. model b shows the three-dimensional shape of the molecule, but model a does not. model b shows how the atoms in the molecule are connected, but model a does not. model b shows the number of atoms of each element in the molecule, but model a does not