domestic electricity
Cards (39)
- What is the unit of power used in a domestic setting?
- How is the amount of electricity used by a device determined?
- How can kilowatt hours (kWh) be calculated?
- What does E represent in the formula E = Pt?
- What does P represent in the formula E = Pt?
- What does t represent in the formula E = Pt?
- How is the cost of electricity calculated?
- What is the unit cost of electricity?
- Where can data for calculating the cost of powering a device be found?
- What does energy banding categorize devices by?
- What are the two main types of current used in electrical circuits?
- What is direct current (DC)?
- What type of current is typically supplied by batteries?
- How does the voltage trace appear on an oscilloscope for DC?
- What is alternating current (AC)?
- What is the voltage and frequency of UK mains supply?
- How does the voltage trace appear on an oscilloscope for AC?
- What are fuses and circuit breakers used for?
- What is a fuse?
- How does a fuse work?
- What are the standard ratings for fuses?
- What happens if a 5A current flows through a 3A fuse?
- What must be done once a fuse has melted?
- What are circuit breakers?
- What is the function of Miniature Circuit Breakers (MCB)?
- How do MCBs compare to regular fuses?
- What do Residual Current Circuit Breakers (RCCB) monitor?
- What happens when an RCCB detects a difference in current?
- What is the purpose of the ring main in domestic settings?
- How are sockets and switches arranged in a ring main?
- What voltage is supplied by the ring main?
- What are the three types of wire in a ring main?
- What color is the live wire?
- What is the function of the neutral wire?
- What color is the earth wire?
- What is the purpose of the earth wire?
- What can be introduced into the ring main for renewable energy?
- What are the benefits of introducing renewable electricity generators?
- What is a drawback of installing renewable electricity generators?