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taysomoneyyy
14.12.2019 •
Physics
Astep-down transformer providing electricity for a residential neighborhood has exactly 2750 turns in its primary. when the potential difference across the primary is 5670 v, the potential difference at the secondary is 240 v. how many turns are in the secondary? show all work.
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Ответ:
116
Explanation:
The transformer equation states that:
where
Vp is the voltage in the primary coil
Vs is the voltage in the secondary coil
Np is the number of turns in the primary coil
Ns is the number of turns in the secondary coil
Here we have:
Vp = 5670 V
Np = 2750
Vs = 240 V
So we can solve the formula to find Ns:
So, the secondary coil has 116 turns.
Ответ: