The emf of an AC circuit has an rms value of 140 V.(a) What is the maximum positive emf?(b) What is the most negative emf?Answers in Volts
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Consider a series LCR circuit with R= 90.0 ⦠and L= 0.160 Henrys,driven by a sinusoidal emf with Erms= 5.90 Volts at frequency f=220 Hz. The sinusoidal current lags the emf by 47.0 degrees.Calculate the capacitance C.What is the rms current in the circuit?If the frequency of the emf is changed to the resonant frequency ofthe circuit, what is the rms current?
An AC generator generates a maximum emf of 35 V and runs at afrequency of 12 Hz. At a time t, the emf is at a maximum. How manyseconds after t does it take for the emf to fall to zero?