Everything you need to know about resistive circuits in series, in parallel and in combination.
In a series circuit, the current is only able to flow through a single path. In a series circuit, the current is the same throughout the entire circuit. The voltage in a series circuit is divided across each of the resistors. If one of the resistors in a series circuit stops working, the current will not be able to flow through the rest of the circuit.
In a parallel circuit, the electrical current flows through multiple paths before returning to the power source. The voltage drop in a parallel circuit is the same across all of the resistors. In a parallel circuit, the current is divided up through each of the resistors. If one of the resistors in a parallel circuit stops working, the other resistors in parallel will be able to continue to working.
A resistor limits the electric current that flows through a circuit. Resistance is the restriction of current. In a resistor the energy of the electrons that pass through the resistor are changed to heat and/or light. For example, in a light bulb, the tungsten filament acts as a resistor that heats up because of the current going through it, causing it to glow. Ohm’s law, V = I x R, states that the voltage drop across a resistor is equal to the product of the current flowing in the resistor multiplied by the resistance of the resistor.