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In this lesson, we will learn how to describe how national electricity grids work and how they respond to changes in demand.
What type of device can be used to increase the potential difference of electricity supplied to the national grid so as to increase the power transmitted while reducing energy lost to the surrounding environment?
Electricity demand increases over winter. Which of the following reasons best explains why
Fossil fuel power stations often only produce about 33% of the total electricity they could produce when operating at maximum output. Which two of the following reasons explain why is this?
The national grid transmits electrical power at a very high potential difference and a very low current. Why is this?
A nuclear power station in the UK develops a fault and needs to be shut down quickly so that it can be repaired. Which of the following types of power station could be quickly turned on to compensate for the supply lost by the nuclear power station shutting down?
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