An electric motor is mounted inside a drying enclosure and drives a fan. The process requires warm air to circulate around wet components.
A technician says, 'For this process, the motor is 100% efficient.'
Discuss the technician's statement.
100 exam-style questions on Edexcel GCSE Physics 3.2 Dissipation and efficiency, covering 3.2.1 Dissipation of energy, 3.2.2 Reducing unwanted energy transfers, 3.2.3 Efficiency, and 3.2.4 Increasing efficiency. Each one has a worked solution and a mark scheme showing where the marks go.