Podcast
Questions and Answers
What is the current that does not contribute to the average power dissipation in an AC circuit?
What is the current that does not contribute to the average power dissipation in an AC circuit?
- Wattless current (correct)
- Reactive current
- Resistive current
- Active current
What is the condition for resonance in a parallel LC circuit?
What is the condition for resonance in a parallel LC circuit?
- XL = 0
- XL = XC (correct)
- XC = 2XL
- XL = 2XC
What is the quality factor of a circuit equivalent to at resonance?
What is the quality factor of a circuit equivalent to at resonance?
- Voltage amplification
- Current amplification (correct)
- Impedance amplification
- Power amplification
What is the impedance of a circuit at resonance?
What is the impedance of a circuit at resonance?
What is a choke coil?
What is a choke coil?
What is the condition of resonance in a parallel RLC circuit?
What is the condition of resonance in a parallel RLC circuit?
What is the average value of the wattless component over one cycle in an AC circuit?
What is the average value of the wattless component over one cycle in an AC circuit?
What is the quality factor of a circuit dependent on?
What is the quality factor of a circuit dependent on?
What is the impedance of a circuit at resonance?
What is the impedance of a circuit at resonance?
What is a choke coil?
What is a choke coil?
What is the condition for parallel resonance in a circuit containing a choke coil?
What is the condition for parallel resonance in a circuit containing a choke coil?
What is the power factor of an ideal choke coil?
What is the power factor of an ideal choke coil?
Why is a soft iron core used in a choke coil?
Why is a soft iron core used in a choke coil?
What is the inductive reactance of a choke coil?
What is the inductive reactance of a choke coil?
What determines the frequency of AC produced by a generator?
What determines the frequency of AC produced by a generator?
What is the condition for resonance in a series RLC circuit?
What is the condition for resonance in a series RLC circuit?
What is the significance of the quality factor Q in a circuit?
What is the significance of the quality factor Q in a circuit?
What is the significance of the phasor diagram in AC circuits?
What is the significance of the phasor diagram in AC circuits?
What is the significance of impedance in a series RLC circuit?
What is the significance of impedance in a series RLC circuit?
What is the application of series RLC circuits in telegraphy?
What is the application of series RLC circuits in telegraphy?
What is the expression for the angular frequency of an alternating quantity?
What is the expression for the angular frequency of an alternating quantity?
What is the significance of the peak value of an alternating quantity?
What is the significance of the peak value of an alternating quantity?
What is the relationship between the rms value and the peak value of an alternating quantity?
What is the relationship between the rms value and the peak value of an alternating quantity?
What is the unit of the angular frequency of an alternating quantity?
What is the unit of the angular frequency of an alternating quantity?
What is the expression for the instantaneous value of an alternating current?
What is the expression for the instantaneous value of an alternating current?
What is the unit of impedance?
What is the unit of impedance?
What is the relationship between reactance and frequency?
What is the relationship between reactance and frequency?
What is the significance of a phasor diagram?
What is the significance of a phasor diagram?
What is the quality factor of a circuit dependent on?
What is the quality factor of a circuit dependent on?
What is the significance of the reciprocal of impedance?
What is the significance of the reciprocal of impedance?
