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How do you describe current and voltage?
Current is the rate at which electric charge flows past a point in a circuit. In other words, current is the rate of flow of electric charge. Voltage, also called electromotive force, is the potential difference in charge between two points in an electrical field. Current is the effect (voltage being the cause).
What is voltage and current in layman terms?
In layman’s terms, it is the measure of “push” available to motivate the charge. When a voltage source is connected to a circuit, the voltage will cause a uniform flow of charge carriers through that circuit called a current.
How do you explain voltage and current to a child?
Voltage – Voltage is the name for the electric force that causes electrons to flow. It’s the measure of potential difference between two points in the circuit. Voltage may come from a battery or a power plant. Current – Current is the measure of the flow of electrons in a circuit.
What would be the best way to describe voltage?
Voltage is the pressure from an electrical circuit’s power source that pushes charged electrons (current) through a conducting loop, enabling them to do work such as illuminating a light. In brief, voltage = pressure, and it is measured in volts (V).
What is the difference between voltage and amps?
Voltage and amperage are two measures of electrical current or flow of electrons. Voltage is a measure of the pressure that allows electrons to flow, while amperage is a measure of the volume of electrons.
Is speed the same as voltage?
Voltage is the pressure that pushes electrons around a circuit. It says nothing about their speed. If you take a 1.5V battery and don’t connect it to anything, then there’s still 1.5V present, even though no electrons are flowing anywhere. Further, voltage is the pressure difference between two points.
Cast in these terms, current is the rate of electric charge motion through a conductor. As stated before, voltage is the measure of potential energy per unit charge available to motivate current flow from one point to another.
How is the amount of current and resistance related?
The amount of current in a circuit depends on the amount of voltage available to motivate the electrons, and also the amount of resistance in the circuit to oppose electron flow. Just like voltage, resistance is a quantity relative between two points.
How is a volt a measure of potential energy?
Don’t say “potential difference”; someone who doesn’t know what an electron is probably isn’t ready for the concept of potential energy. Just like water needs pressure to force it through a hose, electrical current needs some force to make it flow. A volt is the measure of electric pressure.
How are voltages and resistances related to water?
The water analogy is a very common one ( I’m surprised you haven’t heard about it) It usually explains voltage as potential energy of water (from what height it’s coming from), the current as the amount of water flowing and the resistance as the diameter of the tubing. (or something similar)