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The heating effect of a current

The heating effect of a current

Whenever there is a current in a conductor, the conductor becomes warmer. Free electrons drift through the metal from the negative terminal of the battery towards the positive terminal, opposite to the direction of conventional current. As they drift, they collide with vibrating positive ions in the metal lattice.

10.3 Electrical energy and power Lesson

  1. GCSE
  2. /Physics
  3. /10.3 Electrical energy and power

Step-by-step lessons on Edexcel GCSE Physics 10.3 Electrical energy and power, covering 10.3.1 The heating effect of an electric current, 10.3.2 Reducing energy transfer in wires, 10.3.3 Advantages and disadvantages of the heating effect, 10.3.4 Energy transferred by an electrical circuit, 10.3.5 Electrical power, and 10.3.6 Energy transfers in domestic devices. Each one builds up to exam-style questions. Master the required practical work and core equations early, since both papers can draw on content and maths skills from across the whole specification.

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