There are 8000 turns on the primary coil and 200 turns on the secondary coil of the is connected to a 240V mains supply. Suggest wether this transformer is a step up or step down transformer

step down transformer

Explanation:

Applying,

Vp/Vs = Np/Ns Equation 1

Where Vp = Primary voltage, Vs = secondary voltage, Np = number of turns in the primary coil, Ns = number of turns in the secondary coil

make Vs the subject of the equation

Vs = VpNs/Np Equation 2

From the question,

Given: Vp = 240 V, Np = 8000 turns, Ns = 200 turns

Substitute these values into equation 2

Vs = (240×200)/8000

Vs = 6 V.

Since,

Vp>Vs, the the transformer is a step down transformer

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