More RLC troubles

NewtonianAlch

1. The problem statement, all variables and given/known data

Got a nasty surprise after finishing the problem and looking at the solutions to see the resistor disappearing at tax time.

I can't figure out how the resistor disappears, I can only think the people who solved this were looking at a different circuit of sorts.

berkeman

Quote by NewtonianAlch

1. The problem statement, all variables and given/known data

Got a nasty surprise after finishing the problem and looking at the solutions to see the resistor disappearing at tax time.

I can't figure out how the resistor disappears, I can only think the people who solved this were looking at a different circuit of sorts.

The voltage source is a short circuit (if it's an ideal voltage source), and it's in parallel with the resistor...

vela

It would have been better if the solutions didn't say the LC circuit was disconnected from the voltage source. It's not. The voltage source has to still be there to ensure no current flows through the resistor.

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NewtonianAlch	More RLC troubles Tweet 1. The problem statement, all variables and given/known data Got a nasty surprise after finishing the problem and looking at the solutions to see the resistor disappearing at tax time. I can't figure out how the resistor disappears, I can only think the people who solved this were looking at a different circuit of sorts.

vela Recognitions: Gold Member Homework Help Science Advisor Staff Emeritus	It would have been better if the solutions didn't say the LC circuit was disconnected from the voltage source. It's not. The voltage source has to still be there to ensure no current flows through the resistor.