What is the maximum value of impedance?

Since impedance has Resistance in series with reactances of L and C, its minimum value is when reactance is zero. This happens when capacitive and inductive reactances cancel each other at resonance frequency. Maximum value occurs when either of the reactances is maximum (when one is maximum, the other is zero).

What does LCR series circuit have minimum impedance?

(i) The impedance of a series LCR circuit is given by will be minimum when ωL=1/ωC, i.e., when the circuit is under resonance. Hence, for this condition, Z will be minimum and will be equal to R.

How do you find the maximum impedance?

In these cases, the maximum power transfer point is for the source impedance ZS and the load impedance ZL to be complex conjugates. As an exercise, you can write the source impedance ZS=a+bj and the load impedance ZL=c+dj and solve the maximum power equations above.

What will be the impedance of a series LCR circuit at resonance condition?

When a series LCR circuit comes in the state of resonance, the impedance becomes minimum and thus Z=RΩ. We already know that this happens because the value of both inductance and capacitance becomes equal.

Why impedance is maximum in parallel resonance circuit?

As a parallel resonance circuit only functions on resonant frequency, this type of circuit is also known as an Rejecter Circuit because at resonance, the impedance of the circuit is at its maximum thereby suppressing or rejecting the current whose frequency is equal to its resonant frequency.

What is the impedance Z value of series resonant circuit and parallel resonant circuit at resonant frequency?

Also at resonance the parallel LC tank circuit acts like an open circuit with the circuit current being determined by the resistor, R only. So the total impedance of a parallel resonance circuit at resonance becomes just the value of the resistance in the circuit and Z = R as shown.

What is the condition for maximum power transfer theorem?

In electrical engineering, the maximum power transfer theorem states that, to obtain maximum external power from a source with a finite internal resistance, the resistance of the load must equal the resistance of the source as viewed from its output terminals.

What is piezoelectric impedance?

The piezoelectric impedance method is an active sensing method that uses only one transducer and is applied in the bolt looseness detection [49], stress monitoring [50] and structural damage diagnosis [51].