# Physics

The generator at a power plant produces AC at 24,000 V. A transformer steps this up to 345,000 V for transmission over power lines. If there are 2,000 turns of wire in the input coil of the transformer, how many turns must there be in the output coil?

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1. For transformers, the turns ratio equals the voltage ratio.

2000/n = 24,000/345,000

Solve for n.

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2. 28750

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