A transformer with a turns ratio (secondary/primary) of 1:10 is used to step down the voltage from a 120-v wall socket to be used in a battery recharging unit. What is the voltage supplied to the recharger?

Question

Physics

Taffy

17 February, 19:06

A transformer with a turns ratio (secondary/primary) of 1:10 is used to step down the voltage from a 120-v wall socket to be used in a battery recharging unit. What is the voltage supplied to the recharger?

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Answers (1)

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Kamari Ford · Answer 1

The voltage ratio of a transformer is nominally equal to the turns ratio.

If you connect 120 volts AC to one side of the 1:10 transformer, you'll

get 12 volts out of the other side if you connected it up the correct way,

or 1200 volts if you connected things up backwards.

Note that it has to be AC. If the input to a transformer is DC, then the

output is always smoke.