Assertion: tension | /r/HasProperty | potential difference
Facets:
Source sentences:
text: However, a clear definition of voltage and method of measuring it had not been developed at this time.:554 Volta distinguished electromotive force (emf) from tension (potential difference): the observed potential difference at the terminals of an electrochemical cell when it was open circuit must exactly balance the emf of the cell so that no current flowed.:405