When the flow of current is aways in one direction it is known as direct current.
A current consisting of charges that flow only in one direction is called direct current (DC). In DC, electrons flow continuously in one direction from the negative to the positive terminal of a power source.
on a three way switch.alternating current.
A negative answer in a Kirchhoff's Current Law calculation indicates that the assumed direction of current flow was incorrect. It suggests that the actual direction of current flow is opposite to the assumed direction. Therefore, the sign of the calculated current should be corrected to reflect the actual flow direction.
The polarity of an electromagnet is determined by the direction of current flow. When current flows one way, the magnetic field is oriented in one direction, and when it flows the other way, the magnetic field is oriented in the opposite direction.
Direct current (DC) does not reverse its direction of flow. This means that the flow of electrical charge in a DC circuit always moves in one direction, from the positive terminal to the negative terminal.
The current will flow in one direction only. That direction is indicated by, usually, a ring around one end of the diode. The current will flow from the unmarked end to the marked end.
A diode is a "one-way valve" that allows electrical current to flow in only one direction. A diode placed in series between an AC voltage source and a resistive load will allow current to flow through the load in one direction and block the current when the polarity of the AC voltage changes.
Alternating current is a flow of electrical energy in which the direction of electron flow reverses periodically. The mains electricity in your house is likely Alternating Current. The other form is Direct Current, where the direction of electron flow is in one direction only. Such as the flow from the batteries in your flashlight.
Alternating Current (AC) reverses its flow constantly, unlike DC (constant current) which flows in one direction only.
Diodes are the circuit elements that only allow current to flow through them in one direction.
With alternating current the current flows alternately one way and then the other.
To allow current to flow in only one direction.