Engineering Board Exam Reviewer · RLC Circuits and Resonance · easy
Find the resonant frequency of a series circuit containing a 100 mH inductor and a 10, F capacitor.
- 1000 Hz
- 159 Hz
- 79.6 Hz
- 318 Hz
Answer
B. 159 Hz
Solution
f0= 12πsqrt(LC)= 12π (0.1)(10×10-6)=159 Hz.
More RLC Circuits and Resonance questions
- At series resonance, the phase angle between the source voltage and the current is
- At the resonant frequency of a series RLC circuit, the impedance is
- A 6 kW load has a power factor of 0.75 lagging. How many kvar of parallel capacitance raise the power factor to 0.95 lagging?
- A practical parallel resonant circuit consists of a coil (L=100, H, series resistance 10, ) in parallel with a 100 pF capacitor. Using the…
- The curve shows the normalized current of a series RLC circuit versus frequency. The dashed lines mark the half-power (0.707) points, at…
- A series RLC circuit is shown, with R=25, , L=200 mH, and C=5, F connected to a variable-frequency source of 24 V rms. What is the voltage…
- What capacitance must be placed in series with a 25 mH inductor so the circuit resonates at 2 kHz?
- In a series RLC circuit with a high Q, at resonance the voltage across the capacitor is
- A series RLC circuit is operated at a frequency above its resonant frequency. The circuit is
- A 10 kW single-phase load operates at 0.8 power factor lagging. How many kvar of capacitance must be connected in parallel to raise the…