9) Consider a transformer in a power transmission and distribution system betwee

Question

9) Consider a transformer in a power transmission and distribution system between a high voltage transmission line and a house. On which side of the transformer is the number of turns on the transformer greater? A) The number of turns is larger on the transmission line side of the transformer. B) The number of turns is larger on the house side of the transformer C) The number of turns on each side must be equal or close to equal. D) More information is needed 10) Shown here are E and B for an electromagnetic plane wave at one instant in time at point P in space. The fields oscillate in phase along the axes shown. What direction does this wave travel? A) left B) up C) into the page D) out of the page E) None of the above

Explanation / Answer

here,

as the transformer is between high voltage transmission line and a house

so, it is a Step down transformer

and we know ,

Vs /Vp = Ns/ Np

so, the number of turns in primary is greater than in seccondary coil

so, the correct option is A) The number of turns is larger on the transmission line side of the transformer

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