I have a homework question that states: A transformer connected to a 120 V rms ac line is to supply 16800 V(rms) for a neon sign. To resuce shock hazard, a fuse is to be inserted in the primary circuit; the fuse is to blow when the current in the secondary circuit exceeds 10.0mA. a) What is the ratio of secondary to primary turns of the transformer? b) what power must be supplied to the transformer when the secondary current is 10.0 mA? c) What current rating should the fuse in the primary circuit have?(adsbygoogle = window.adsbygoogle || []).push({});

for problem a I figured it to be n1/n2 = v1/v2 or a 1 - 140 ratio.

I am confused on how to figure out problem b and problem c. I do not know what formula to use for those problems.

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# Homework Help: Step up transformer

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