( they ( ( ( can also ) ( ( induce ( ( voltages and ) currents ) ) ( in ( ( electric ( power grids ) ) ( on Earth ) ) ) ) ) . ) )
(ROOT (S (NP (PRP they)) (VP (MD can) (ADVP (RB also)) (VP (VB induce) (NP (NNS voltages) (CC and) (NNS currents)) (PP (IN in) (NP (NP (JJ electric) (NN power) (NNS grids)) (PP (IN on) (NP (NNP Earth))))))) (. .)))
they can also induce voltages and currents in electric power grids on Earth.
(ROOT (S (NP (NP (NNP Power)) (PP (IN in) (NP (NN electricity)))) (VP (VBZ is) (NP (NP (DT the) (NN voltage)) (VP (VBN multiplied) (PP (IN by) (NP (DT the) (JJ current)))))) (. .)))