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Teoria de Circuitos Elétricos 2024-2025

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Consider the aggregate of capacitors represented

where C1=5,23 nF, C2=9,38 nF and C3=5,71 nF

Determine the equivalent capacitance in nF, using 3 decimals

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Consider the circuit represented in a) where C1=5,11 nF, R1=141,5 KΩ and I1=2,9 mA .

Consider circuit b) and the values for Rth and Vth previously obtained.

It is known that the overall response of the voltage in the capacitor will be given by 

Vc(t)= A. (1-es.t )

Please indicate the value for t, at which the transient response is nulled. 

(Please give the time in mili seconds and give your answer using 3 decimals)

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Consider the circuit represented in a) where C1=3,76 nF, R1=126,2 KΩ and I1=8,9 mA.

Consider circuit b) and the values for Rth and Vth previously obtained.

It is known that the transient response of the voltage in the capacitor will be given by 

Vctrans(t)= A. es.t

 Please give the value for parameter s

Hint: please have in mind that C1 is in nF and the resistors are in KΩ

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Consider the circuit represented in a) where C1=5,07 nF, R1=136,5 KΩ and  R2=260,4 KΩ  and v1=2,3

Consider circuit b) and the values for Rth and Vth previously obtained.

Consider that after having been set to V1 for a long time, the voltage source is set to Zero. Consider this instant as t=0.

Should the transient response be  given by

Vctrans(t)= A. es.t

 Please give the value for parameter A

Hint: please have in mind that C1 is in nF and the resistors are in KΩ

View this question

Consider the circuit represented in a) where C1=7,14 nF, R1=174,5 KΩ and  R2=212,5 KΩ  and v1=11,5

Consider circuit b) and the values for Rth and Vth previously obtained.

Consider that after having been set to V1 for a long time, the voltage source is set to Zero. Consider this instant as t=0.

Should the transient response be  given by

Vctrans(t)= A. es.t

 Please give the value for parameter A

Hint: please have in mind that C1 is in nF and the resistors are in KΩ

View this question

Consider the circuit represented in a) where C1=7,08 nF, R1=139,1 KΩ and I1=1,5 mA .

Consider circuit b) and the values for Rth and Vth previously obtained.

It is known that the overall response of the voltage in the capacitor will be given by 

Vc(t)= A. (1-es.t )

Please indicate the value for t, at which the transient response is nulled. 

(Please give the time in mili seconds and give your answer using 3 decimals)

View this question

Consider the circuit represented in a) where C1=7,08 nF, R1=139,1 KΩ and I1=1,5 mA.

Consider circuit b) and the values for Rth and Vth previously obtained.

It is known that the transient response of the voltage in the capacitor will be given by 

Vctrans(t)= A. es.t

 Please give the value for parameter s

Hint: please have in mind that C1 is in nF and the resistors are in KΩ

View this question

Consider the circuit represented in a) where C1=7,08 nF, R1=139,1 KΩ and  I1=1,5 mA .

Consider circuit b) and the values for Rth and Vth previously obtained.

What is the value of Rth, in figure b) for which circuit b) is equivalent to circuit a)

It is known that the overall response of the voltage in the capacitor will be given by 

Vc(t)= A. (1-es.t )

Considering tx=0,71 ms

Please give the value for  vc( 0,71ms)

(give your answer using 3 decimals)

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Consider the circuit represented in a) where C1=7,08 nF, R1=139,1 KΩ and  I1=1,5 mA .

Consider circuit b) and the values for Rth and Vth previously obtained.

It is known that the overall response of the voltage in the capacitor will be given by 

Vc(t)= A. (1-es.t )

If the capacitor is initially discharged,  what is the value for parameter A

(give your answer using 3 decimals)

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Consider the circuit represented in a) where C1=7,08 nF, R1=139,1 KΩ and  I1=1,5 mA .

What is the value of Rth, in KΩ, in figure b) for which circuit b) is equivalent to circuit a)

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