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Current, potential difference and resistance

Current, potential difference and resistance

Current is the flow of electric charge, potential difference is the energy transferred per unit charge, and resistance is how much a component opposes current. Their symbols are III, VVV, and RRR, and their units are amperes, volts, and ohms.

Resistance and circuit components Lesson

  1. GCSE
  2. /Combined Science
  3. /Resistance and circuit components

Step-by-step lessons covering Edexcel GCSE Combined Science Resistance and circuit components for Foundation and Higher tier. Each lesson works through exam-style questions.

Lessons