Increasing the Current

If the frequency in a series RLC circuit is set to the resonance frequency, which of the following would increase the current in the circuit?

  1. Increasing the frequency.
  2. Decreasing the frequency.
  3. Decreasing the resistance.
  4. Increasing the capacitance.
  5. Decreasing the inductance.
  6. Either 3, 4, or 5
















If you're already at resonance, changing frequency, capacitance, or inductance takes you away from resonance and decreases the current in the circuit. Only decreasing the resistance would increase the current.