b. Select one of the appliances from the table in part a. and name a useful form of energy produced when the appliance is being used. For the appliance you have selected, name an unwanted form of energy produced. For the appliance you have selected, calculate the voltage applied across the appliance. Include the unit for your answer.
c. What pattern, if any, exists between the power rating of the appliance and the current used? Sustainability issues arise from the generation and consumption of electricity. d. What do you understand by the term ‘sustainability’? e. Suggest one way in which we can reduce how much electrical energy we use.
2. Sample Paper 2018, Question 13
The Juno mission to Jupiter uses solar energy to produce electricity. JunoCam, a camera on the Juno probe, is powered by Juno’s solar panels. Calculate the electrical power (P) generated by JunoCam when it uses a current of 0.5 A flowing across a potential difference (voltage) of 12 V.
:Fig. 32.9 j Go to page 161 of your Assessment Book to answer more exam-style questions.