5. A coil of inductance 80mH and negligible resistance is connected in series with a capacitance of 0.25µF and a resistor of resistance 12.5 ohms across a 100V, variable frequency supply. Determine (a) the resonant frequency and (b) the current at resonance. How many times greater than the supply voltage is the voltage across the reactances at resonance?

5. A coil of inductance 80mH and negligible resistance is connected in series with a capacitance of 0.25µF and a resistor of resistance 12.5 ohms across a 100V, variable frequency supply. Determine (a) the resonant frequency and (b) the current at resonance. How many times greater than the supply voltage is the voltage across the reactances at resonance?

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter23: Electromagnetic Induction, Ac Circuits, And Electrical Technologies

Section: Chapter Questions

Problem 104PE: An RLC series circuit has a 1.00 k(resistor, a 1.50 (H inductor, and a 25.0 nF capacitor. (a) Find...

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Question

15. A coil of inductance 80mH and negligible resistance is connected in series with a
capacitance of 0.25µF and a resistor of resistance 12.5 ohms across a 100V, variable
frequency supply. Determine (a) the resonant frequency and (b) the current at resonance.
How many times greater than the supply voltage is the voltage across the reactances at
resonance?

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