A student tests an electronic doorbell and records these measurements.
| measurement | reading |
|---|---|
| current in the doorbell | 150 mA |
| potential difference across the doorbell | 6.0 V |
Calculate the power transferred to the electronic doorbell during the test.
105 exam-style questions 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 has a worked solution and a mark scheme showing where the marks go.