String the components in a single loop and the current has only one road to travel, so it is the same everywhere. The push from the supply, though, gets shared out along the way.
In a series circuit there is a single path, so the current is the same at every point. The supply voltage is shared as potential difference across the components, and the total resistance is the sum of the individual resistances.
In a series circuit the components form a single loop. The current is the same at every point, the supply voltage is shared between the components, and the resistances add.
More resistors in series means a larger total resistance and a smaller current.
Add resistors in series and watch the current stay equal everywhere while the voltage shares out.
Four quick checks. Each correct answer earns XP and lights this skill on your star map.
In a series circuit the current is...
In a series circuit the supply voltage is...
The total resistance of resistors in series is...
Adding more resistors in series makes the total resistance...
The one rule that current is equal everywhere, and the two that voltage shares and resistances add.
A 3.0 Ω resistor and a 5.0 Ω resistor are connected in series. Find the total resistance.
In series the current is the same all the way round, it is not shared. It is the voltage that is shared between the components, and the resistances add up.
Unlocks once the four checks above are done. Worth more XP, written in the style of Paper 2.
A 3.0 Ω and a 5.0 Ω resistor are in series. The total resistance is...
Two identical lamps are connected in series across a 6.0 V supply. The voltage across each lamp is...
The current leaving the battery in a series circuit is 0.40 A. The current through a resistor further round the loop is...
Series circuits are mapped. Keep the chain going.