MakerRepo Staff, MakerRepo Volunteers
240
edits
Changes
Digital technologies/Arduino/Arduino- Beginner (view source)
Revision as of 18:41, 19 June 2022
, 18:41, 19 June 2022no edit summary
A circuit is a pathway where electricity can flow through a closed path from the negative (cathode) to the positive (anode) end of a power source. Elements in a circuit can either supply or expend energy. Energy is measured in Joules (J). Suppliers of energy are called sources; they provide a voltage, or charge electrons with energy. The number of electrons flowing in a circuit is called a current, measured in Amperes (A).
A circuit is a pathway where electricity can flow through a closed path from the negative (cathode) to the positive (anode) end of a power source. Elements in a circuit can either supply or expend energy. Energy is measured in Joules (J). Suppliers of energy are called sources; they provide a voltage, or charge electrons with energy. The number of electrons flowing in a circuit is called a current, measured in Amperes (A).
A common voltage source is a chemical battery, which is an example of a direct-current power source (DC). It provides electrons with a fixed amount of energy (i.e. a fixed voltage) through a chemical reaction within a battery. Resistance is a value that describes how easy for electrons to move in a material when voltage is applied. Resistors are devices that can be added to the circuit to impede current flow. The relationship that represents the relationship between voltage, current, and resistance is ohm’s law, represented by: V=IR. The power source in a circuit determines the voltage supplied and the current available. The connected components will draw current from the power source.
A common voltage source is a chemical battery, which is an example of a direct-current power source (DC). It provides electrons with a fixed amount of energy (i.e. a fixed voltage) through a chemical reaction within a battery. Resistance is a value that describes how easy for electrons to move in a material when voltage is applied. Resistors are devices that can be added to the circuit to impede current flow. The relationship that represents the relationship between voltage, current, and resistance is ohm’s law, represented by: V=IR. The power source in a circuit determines the voltage supplied and the current available. The connected components will draw current from the power source.
=== Breadboard ===
=== Breadboard ===
=== Ohm's Law ===
=== Ohm's Law ===
There are three arrangements of circuits, series, parallel, and combination. In a series circuit, the amount of current flowing is the same at all points in the circuit, whereas the voltage supplied by the battery is equal to the voltage drop across each component. A series circuit has only one path for electricity to flow, so if any component fails in the circuit, all other components will also stop operating, as the circuit is now open. In a parallel circuit, the voltage is the same in all branches, whereas the current is different in each branch.
==== Series Circuits ====
==== Series Circuits ====