Powering Earth

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Question 19
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This is a diagram of a transformer used in an electrical transmission grid.

A transformer diagram showing a primary coil on the left connected to an input voltage of 25 000 V, and a secondary coil on the right connected to an output voltage of 250 000 V.

Why is this transformer used in the transmission grid?

To decrease the power in the grid by a factor of 101010.

To decrease the power loss in the transmission lines by a factor of 100100100.

To increase the power in the grid by a factor of 101010.

To decrease the power loss in the transmission lines by a factor of 101010.

Powering Earth Questions

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