"The sum of emf's and potential differences around a closed loop equals zero" is a consequence of

A. an inverter B. a ups C. a step up transformer D. a step down transformer

A. 40 Ω B. 20 Ω C. 60 Ω D. 800 Ω

A. charge flow B. voltage flow C. water flow D. air flow

A. conduct electricity at lower temperature B. offer high resistance to the flow of current C. offer not resistance to the flow of current D. conduct electricity at high temperature