# Physics problem

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Neon signs require about 12000V for their operation. The primary operates from 120V lines.
a. What is the ratio of the number of loops in the secondary to the number of loops in the primary?
b. What is the ratio of the power delivered to the secondary coil to the power supplied by the primary coil?

• Physics problem -

I will be happy to critique your thinking.

• Physics problem -

a. 100:1
b. 100:1
Are these correct?

• Physics problem -

How do you get the power supplied if you don't know the resistance?

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