Answer to Question #350548 in Electricity and Magnetism for Tiigrey

Question #350548

An electrical appliance works with a voltage not exceeding 25V when it is connected to the main power supply a step-down transformer with 50 turns in the primary coil is used.Calculate the number of turns in the secondary coil when the voltage of the main power supply is 220V.


1
Expert's answer
2022-06-14T08:41:01-0400
"\\frac{V_1}{V_2}=\\frac{N_1}{N_2}"

"N_2=N_1\\frac{V_2}{V_1}=50*\\frac{220}{25}=440\\:\\rm turns"


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