Linked from

The 30 pages that link to Direct current, each with the reason it gives.

• Electric currentBroader topic: It is the steady-direction case, even if its magnitude varies.

• Alternating currentCompared with: Direct current differs from AC in its direction of flow and conversion needs.

• Thomas EdisonCompared with: Edison promoted direct-current networks against competitors’ alternating-current systems.

• Railway electrificationRelated: Early electric railways commonly used direct-current supply.

• TransformerCompared with: Steady direct current does not sustain the changing flux needed for ordinary transformer operation.

• Electrical circuitRelated: Direct-current circuits have a consistent current direction.

• CommutatorRelated: The commutator lets a direct-current supply drive alternating current in rotating armature coils.

• Electric generatorCompared with: It contrasts with the alternating output of most rotating generators.

• InductorRelated: After transients settle, an ideal inductor passes steady direct current without voltage drop.

• Electrical impedanceCompared with: At steady state, ideal capacitors and inductors behave differently than under alternating current.

• Electrical powerBroader topic: For steady DC, voltage multiplied by current gives the circuit's power.

• Electric power systemCompared with: Direct current contrasts with the alternating-current networks used by most grids.

• Skin effectCompared with: Steady direct current does not exhibit frequency-driven surface concentration.

• Electric circuitRelated: Direct-current circuits keep current direction fixed over time.

• Power inverterNarrower topic: Batteries and photovoltaic systems provide the DC input an inverter converts.

• ElectricityCompared with: It provides the one-way-current counterpart to alternating current.

• War of the currentsCompared with: Edison’s system supplied current in one direction but was difficult to transmit over long distances.

• Static electricityCompared with: A circuit's continuous charge flow is distinct from an isolated static buildup.

• Overhead LinesCompared with: Some overhead systems use direct current instead of alternating current.

• Power over EthernetRelated: PoE delivers direct-current power from the source to the connected device.

• Electrical frequencyCompared with: An ideal steady direct current has no repeating cycle whose frequency can be specified.

• Mains electricityCompared with: It contrasts with the alternating current commonly delivered by public mains.

• George WestinghouseCompared with: Edison's distribution companies favored DC, which was harder to transmit efficiently over long distances.

• Ampere-hourRelated: A steady direct current makes the current-times-time calculation straightforward.

• AC adapterCompared with: Many devices require direct current even though household mains supplies alternating current.

• Frank PantridgeRelated: The early portable apparatus delivered a direct-current shock to the heart.

• AC powerCompared with: DC is the principal alternative to AC for transmission, storage, and electronic circuits.

• Diode bridgeRelated: The bridge’s output has this one-way direction but remains pulsating.

• Electricity (electric power)Compared with: Direct current contrasts with the alternating current used by most power grids.

• Home energy storageRelated: Battery cells store and deliver direct current, requiring conversion for standard household circuits.