course Hame xMasteringPhysics hw-06 Search Textbook Solutions 1 Cix e secure htt

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course Hame xMasteringPhysics hw-06 Search Textbook Solutions 1 Cix e secure https://session.mesteringphysics.com/myct/itemview?assignmentProblemlD-89973413 hw-06 Problem 21.36 607 Constants Part A A transforrner consists of 270 primary windings and 832 If the potential difference across the primary coll is 255 V.what is the voltage across the secondary coi? Express your answer in volts to three significant figures ce scross the primary coll is 25.5 V, what is the voltage across the secondary coi? Submit PartB If the potential difference across the primary coil is 25.5 Vwhat is the current in the secondary coil ifit is connected across a 140 resistor Express your answer in amperes to three significant figures. Submit Request Answer

Explanation / Answer

Given that,

Np = 270 ohm

Ns = 832 ohm

Vp = 25.5 V

(A)

From the formula of transformer ratio,

Ns / Np = Vs / Vp

Vs = (832 / 270)*25.5

Vs = 78.57 V

(B)

Current in secondary coil,

ls = Vs / Rs

ls = 78.57 / 140

ls = 0.561 A

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