Series

• same current through each component
• total potential difference of the power supply is shared between the components
• the total resistance of two components is the sum of the resistance of each component
• resistors in series increase resistance
• in a series circuit, adding resistors will increase resistance. the current is the same in every single component in the circuit, so the more resistors we add, the harder it is for current to flow
• an electron will pass trough every component on its way around the circuit
• if one bulb is broken then the current will not be able to flow round the circuit, so if one bulb goes out they all go out
• all source energy is shared between components
• the total resistance of the circuit is the sum of the individual resistors