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23 Nov 2019

an ac generator has an emf E=Emax*sin(wdt-π/4), where Emax=30Vand wd= 350 rad/s. The current produced in a connected circuit isi(t)= I*sin(wdt-3π/4), where I=620mA. At what time after t=0 doesa) the generator emf first reach a maximum and b) the current reacha maximum? c) the circuit contains a single element other thatn thegenerator. Is it a capacitor, an inductor, or a resistor? justifyyour answer. d) what is the value of the capacitance, inductance,or resistance, as the case may be?

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Nelly Stracke
Nelly StrackeLv2
15 Aug 2019

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Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

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A circuit is constructed with an AC generator, a resistor, capacitor, and inductor as shown. The generator voltage varies in time E=Va-Vb=Emsinωt, where Em = 120V and ω=472 radian/second. The inductance L =336mH. The value for the capacitance C and the resistance R is unknown. What is known is that the current in the circuit leads the voltage across the generator by φ=55° and the average power delivered to the circuit by the generator is Pavg=147W.

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2)
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