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Big picture and laws

Big picture and laws

Comparison of a series circuit with two resistors in one loop and a parallel circuit with two branches, showing current and voltage labels A series circuit has one path for current, while a parallel circuit has more than one path between the same two nodes. That single visual difference explains why current, voltage, and resistance behave differently.

Series and parallel circuits Lesson

  1. AS Level
  2. /Physics
  3. /Series and parallel circuits

Step-by-step lessons covering Edexcel AS Level Physics Series and parallel circuits for AS Level Physics. Each lesson works through exam-style questions.

Lessons

Current, potential difference and resistanceSeries and parallel circuitsI-V characteristics and resistivityPotential dividers and sensorsEMF and internal resistance