Assertion: capacitor's current | /r/HasProperty | needed
Facets:
Source sentences:
text: For the very highest powers, each arm of the bridge may consist of tens or hundreds of separate devices in parallel (where very high current is needed, for example in aluminium smelting) or in series (where very high voltages are needed, for example in high-voltage direct current power transmission).
text: Bypass capacitors are used to provide the necessary current when demanded.