Physics

Physics

Problem

An ideal transformer has a turn ratio Np:Ns=10:1N_p:N_s = 10:1. If a 5 Ω5\,\Omega resistor is connected across the secondary, the resistance as seen from the primary side is a) 50 Ω50\,\Omega b) 5 Ω5\,\Omega c) 500 Ω500\,\Omega d) 100 Ω100\,\Omega

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