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### 6 Cards in this Set

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 What is the formula to find inductive reactance? 2*PIE*F*L What is the capacitive reactance of a 2uF capacitor at 400 Hertz? 199 ohms You have a 4 ohm speaker and a 100 ohm source. What must the turns ratio be to match? Zp/Zs = (Np/Ns)squared 5:1 A transformer has 400 turns on the primary and 1200 turns on the secondary. If 120 volts is applied to the primary What is the induced voltage on the secondary? Es/Ep = Ns/Np Es = 360 volts A transformer has 500 turns on the primary and 100 turns on the secondary. If 120 volts AC is applied to the primary what is the voltage induced in the secondary? Es/Ep = Ns/Np Es = 24 volts A transformer has a 10:1 turns ratio.If the primary has a current of 100mA, how much current flows in the secondary? Ip/Is = Ns/Np Is = 1A