In a DC circuit yes. The compass detects the magnetic field around the wire. Reverse the DC current and the compass will swing 180 degrees from the position is was in.
A circuit carrying current in one direction is called a direct current (DC) circuit. In a DC circuit, the flow of electric charge is constant and does not change direction. This is in contrast to an alternating current (AC) circuit, where the flow of electric charge changes direction periodically. DC circuits are commonly used in electronics and power transmission systems.
The flow in a circuit is called the electric current and it is measured by voltages. The number of volts that are present in the charge will determine the strength of the electric current.
Most people say electrons (which are negatively charged). Some who are really out there might say it's a flow of holes moving the other direction.
It makes sense for charge carriers to lose energy in a circuit, but I don't think it quite works that way. For example, a voltage doesn't accelerate an electron or other charge carrier at a single point - rather, the force experienced by the charge carriers would be spread out over a larger area.
Resistance
The direction of flow of charge is determined by the electric field present in a circuit. Charge will flow from areas of higher potential energy to lower potential energy, following the direction of the electric field.
In an alternating current (AC) circuit, the electric charge periodically reverses direction at a certain frequency. This is in contrast to a direct current (DC) circuit, in which charge flows in one direction only.
Yes
To determine the direction of the electric field, you can use a positive test charge. The direction of the electric field is the direction in which a positive test charge would move if placed in that field.
A circuit carrying current in one direction is called a direct current (DC) circuit. In a DC circuit, the flow of electric charge is constant and does not change direction. This is in contrast to an alternating current (AC) circuit, where the flow of electric charge changes direction periodically. DC circuits are commonly used in electronics and power transmission systems.
To determine the direction of the electric field at a specific point, you can place a positive test charge at that point and observe the direction in which it experiences a force. The direction of the force on the positive test charge indicates the direction of the electric field at that point.
No, the continuous flow of charge in a circuit is called electric current. Direct current (DC) refers to the flow of electric charge in a single direction, whereas alternating current (AC) changes direction periodically.
The electrons don't actually move the electricity; the charge moves. The electrons slowly drift in the opposite direction from the charge.
Determine which circuit is involved and then troubleshoot that circuit You should take your truck to Autozone and have them check the charge on your alternator, they do this for free.
The flow in a circuit is called the electric current and it is measured by voltages. The number of volts that are present in the charge will determine the strength of the electric current.
In the US, it is common practice in a DC circuit to refer to the polarity for which "positive (+) charge" is flowing. Positive charge (current) will flow out of a voltage supply's positive (+) terminal which means positive charge will flow into the (+) terminal of a circuit load (resistor, etc). This is an arbitrary convention and may be reversed in older or foreign textbooks. In such cases all positive (+) references in the previous description would be replaced by negative, (-) notations.
Either a positive or a negative test charge can be used to determine an electric field. The direction of the electric field will be defined by the force experienced by the test charge, with the positive test charge moving in the direction of the field and the negative test charge moving opposite to the field.