Linking current, potential difference and resistance

The current in a series circuit is the same everywhere. The p.d. across each component in a series electric circuit adds up to the p.d. of the battery. The greater the resistance in a series circuit, the lower the current (current is inversely proportional to resistance). The greater the battery p.d. in series circuit, the larger the current (current is directly proportional to p.d.). Current, p.d. or resistance can be calculated with the equation: current = p.d./resistance.