Question 1

An impedance spectrum containing 80 data points was fitted with different circuit models. The number of adjustable parameters in each model and the residual sum squared errors are listed below. $$\begin{array} { | l | l | l | } 
\hline \text { Model } & \begin{array} { l } 
\text { Number of } \
\text { Parameters }
\end{array} & \text { RSS } \
\hline \text { Model-1 } & 3 & 200 \
\hline \text { Model-2 } & 5 & 150 \
\hline \text { Model-3 } & 8 & 110 \
\hline \text { Model-4 } & 12 & 105 \
\hline
\end{array}$$
The best-suited model should be chosen based on the least value of

Accepted Answer

A)   RSS
B)   Akaike Information criterion (AI
C)  
C)   corrected AIC
D)   none of the above  C

Question 2

When multiple circuits are evaluated to model a data, the best fit model should be selected based on

Accepted Answer

A)   least number of parameters
B)   least residual sum squared
C)   least residual sum
D)   Akaike information criterion D

Question 3

An impedance spectrum of an electrochemical system can be modeled using the following circuit. Then , R_t = _________ $\Omega$ and R_p = ________ $\Omega$

Accepted Answer

75.6 (from 72 to 80), 1000 (exact)

Question 4

An impedance spectrum of an electrochemical system can be modeled using the following circuit. Then , R_t = _________ $\Omega$ and R_p = ________ $\Omega$

Accepted Answer

The answer of An impedance spectrum of an electrochemical system...

Question 5

From Bode plot, estimate charge transfer resistance _______ $\Omega$ and polarization resistance ___________ $\Omega$

Accepted Answer

The answer of From Bode plot, estimate charge transfer resistance...

Question 6

The following circuit can model an impedance spectrum perfectly.

Which other circuits can model the data equally well?
 (Circuit-1)

(Circuit-2)

Accepted Answer

A)   only Circuit-1
B)   only Circuit-2
C)   both Circuit-1 and Circuit-2
D)   neither Circuit-2 nor Circuit-2

Question 7

For the following circuit, determine the impedance at a frequency of 0.1 Hz. Z_Re = __________ $\Omega$ and Z_Im = ____________ $\Omega$

Accepted Answer

The answer of For the following circuit, determine the impedance...

Question 8

An impedance spectrum of a system is given below. The polarization resistance is _____ $\Omega$

Accepted Answer

The answer of An impedance spectrum of a system is...

Question 9

The following two circuits are equivalent. The values of R₁ and R₂ are (i) R₁ = __________ $\Omega$ (ii) R₂ = ________________$\Omega$

Accepted Answer

The answer of The following two circuits are equivalent. The...

Question 10

For the following circuit, determine the impedance at a frequency of 1 Hz. Z_Re = __________ $\Omega$ and Z_Im = ____________ $\Omega$

Accepted Answer

The answer of For the following circuit, determine the impedance...

Question 11

An impedance spectrum of a complex reaction is acquired at open circuit potential. The real part of the impedance can exhibit negative differential resistance..

Accepted Answer

A) True 
 B)False

Question 12

The following two circuits are equivalent. The values of R₁ and R₂ are (i) R₁ = __________ $\Omega$ (ii) R₂ = ________________$\Omega$

Accepted Answer

The answer of The following two circuits are equivalent. The...

Question 13

The following circuit can model an impedance spectrum perfectly. 
Which other circuits can model the data equally well?
 (Circuit-1)
 (Circuit-2)

Accepted Answer

A)   only Circuit-1
B)   only Circuit-2
C)   both Circuit-1 and Circuit-2
D)   neither Circuit-2 nor Circuit-2

Question 14

Charge transfer resistance is the value of faradaic impedance at _____

Accepted Answer

A)   infinite frequency
B)   zero frequency
C)   open circuit potential
D)   large dc bias

Question 15

The type of circuit given below is known as

Accepted Answer

A)   Maxwell circuit
B)   Ladder circuit
C)   Voigt circuit
D)   Randel's circuit

Question 16

The following impedance spectrum is to be modeled.

Among the following circuit choices, which one can be used to model the data?

Accepted Answer

A)   
B)   
C)   
D)   none of the above

Question 17

An impedance spectrum of a system is given below. The charge transfer resistance is _____ $\Omega$

Accepted Answer

The answer of An impedance spectrum of a system is...

Question 18

An impedance spectrum of an electrochemical system can be modeled using the following circuit. Then , R_t = _________ $\Omega$ and R_p = ________ $\Omega$

Accepted Answer

The answer of An impedance spectrum of an electrochemical system...

Question 19

The type of circuit given below is known as

Accepted Answer

A)   Maxwell circuit
B)   Ladder circuit
C)   Voigt circuit
D)   Randel's circuit

Question 20

The following impedance spectrum is to be modeled.

Among the following circuit choices, which one can be used to model the data?

Accepted Answer

A)   
B)   
C)   
D)   none of the above

Exam 4: Data Analysis Equivalent Electrical Circuits

When multiple circuits are evaluated to model a data, the best fit model should be selected based on

The following circuit can model an impedance spectrum perfectly. Which other circuits can model the data equally well? (Circuit-1) (Circuit-2)

For the following circuit, determine the impedance at a frequency of 0.1 Hz. Z_Re = __________ $\Omega$ and Z_Im = $\Omega$ $For the following circuit, determine the impedance at a frequency of 0.1 Hz. Z<sub>Re</sub> = \Omega and Z<sub>Im</sub> = __ \Omega$

An impedance spectrum of a system is given below. The polarization resistance is _ $\Omega$ $An impedance spectrum of a system is given below. The polarization resistance is _ \Omega$

For the following circuit, determine the impedance at a frequency of 1 Hz. Z_Re = __________ $\Omega$ and Z_Im = $\Omega$ $For the following circuit, determine the impedance at a frequency of 1 Hz. Z<sub>Re</sub> = \Omega and Z<sub>Im</sub> = __ \Omega$

An impedance spectrum of a complex reaction is acquired at open circuit potential. The real part of the impedance can exhibit negative differential resistance..

The following circuit can model an impedance spectrum perfectly. Which other circuits can model the data equally well? (Circuit-1) (Circuit-2)

Charge transfer resistance is the value of faradaic impedance at _____

The type of circuit given below is known as

The following impedance spectrum is to be modeled. Among the following circuit choices, which one can be used to model the data?

An impedance spectrum of a system is given below. The charge transfer resistance is _ $\Omega$ $An impedance spectrum of a system is given below. The charge transfer resistance is _ \Omega$

The type of circuit given below is known as

The following impedance spectrum is to be modeled. Among the following circuit choices, which one can be used to model the data?

Exam 4: Data Analysis Equivalent Electrical Circuits

When multiple circuits are evaluated to model a data, the best fit model should be selected based on

An impedance spectrum of an electrochemical system can be modeled using the following circuit. Then , Rt = _________ Ω\OmegaΩ and Rp = ________ Ω\OmegaΩ

An impedance spectrum of an electrochemical system can be modeled using the following circuit. Then , Rt = _________ Ω\OmegaΩ and Rp = ________ Ω\OmegaΩ

From Bode plot, estimate charge transfer resistance _______ Ω\OmegaΩ and polarization resistance ___________ Ω\OmegaΩ

The following circuit can model an impedance spectrum perfectly. Which other circuits can model the data equally well? (Circuit-1) (Circuit-2)

For the following circuit, determine the impedance at a frequency of 0.1 Hz. ZRe = __________ Ω\OmegaΩ and ZIm = ____________ Ω\OmegaΩ

An impedance spectrum of a system is given below. The polarization resistance is _____ Ω\OmegaΩ

The following two circuits are equivalent. The values of R1 and R2 are (i) R1 = __________ Ω\OmegaΩ (ii) R2 = ________________ Ω\OmegaΩ

For the following circuit, determine the impedance at a frequency of 1 Hz. ZRe = __________ Ω\OmegaΩ and ZIm = ____________ Ω\OmegaΩ

An impedance spectrum of a complex reaction is acquired at open circuit potential. The real part of the impedance can exhibit negative differential resistance..

The following two circuits are equivalent. The values of R1 and R2 are (i) R1 = __________ Ω\OmegaΩ (ii) R2 = ________________ Ω\OmegaΩ

The following circuit can model an impedance spectrum perfectly. Which other circuits can model the data equally well? (Circuit-1) (Circuit-2)

Charge transfer resistance is the value of faradaic impedance at _____

The type of circuit given below is known as

The following impedance spectrum is to be modeled. Among the following circuit choices, which one can be used to model the data?

An impedance spectrum of a system is given below. The charge transfer resistance is _____ Ω\OmegaΩ

An impedance spectrum of an electrochemical system can be modeled using the following circuit. Then , Rt = _________ Ω\OmegaΩ and Rp = ________ Ω\OmegaΩ

The type of circuit given below is known as

The following impedance spectrum is to be modeled. Among the following circuit choices, which one can be used to model the data?

For the following circuit, determine the impedance at a frequency of 0.1 Hz. Z_Re = __________ $\Omega$ and Z_Im = $\Omega$ $For the following circuit, determine the impedance at a frequency of 0.1 Hz. Z<sub>Re</sub> = \Omega and Z<sub>Im</sub> = __ \Omega$

An impedance spectrum of a system is given below. The polarization resistance is _ $\Omega$ $An impedance spectrum of a system is given below. The polarization resistance is _ \Omega$

For the following circuit, determine the impedance at a frequency of 1 Hz. Z_Re = __________ $\Omega$ and Z_Im = $\Omega$ $For the following circuit, determine the impedance at a frequency of 1 Hz. Z<sub>Re</sub> = \Omega and Z<sub>Im</sub> = __ \Omega$

An impedance spectrum of a system is given below. The charge transfer resistance is _ $\Omega$ $An impedance spectrum of a system is given below. The charge transfer resistance is _ \Omega$