Problem 10-1    Source:   Problem elaborated by the author of the site.

In the circuit shown in Figure 10-01.1 , determine:

a) The currents i₁ , i₂ and i₃.

b) The voltage in the points e₁ e e₂.

c) Make a power balance of the circuit.

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Problem 10-2    Source:   Problem elaborated by the author of the site.

On the circuit show in Figure 10-02.1, determine:

a) The current i_k.

b) What power is supplied and/or received by the 10 A source.

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Problem 10-3    Source:   Problem 2.13 - page 64 -   IRWIN, J. David - Book: Análise de Circuitos em Engenharia - 4ª edição - Ed. Pearson Education do Brasil - 2013.

On the circuit show in Figure 10-03.1, determine:

a) The voltage V_o.

b) What power is supplied and/or received by the voltage source.

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Problem 10-4    Source:   Problem elaborated by the author of the site.

On the circuit show in Figure 10-04.1, determine:

a) The currents i₁ and i₂.

b) What is the power dissipated in the 10 ohm resistor?

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Problem 10-5    Source:   Problem elaborated by the author of the site.

On the circuit show in Figure 10-05.1, determine:

a) The currents i₁ and i₂.

b) What is the power dissipated in the 5 ohm resistor?.

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Problem 10-6    Source:   Problem 2.18 - page 64 -   IRWIN, J. David - Book: Análise de Circuitos em Engenharia - 4ª edição - Ed. Pearson Education do Brasil - 2013.

In the circuit show in Figure 10-06.1, determine:

a) The current i_o

b) The voltage V_o

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Problem 10-7    Source:   Problem elaborated by the author of the site.

On the circuit show in Figure 10-07.1, determine:

a) The currents i₁ and i₂.

b) The voltage V_o.

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Problem 10-8    Source:   Problem 2.42 - page 70 -   IRWIN, J. David - Book: Análise de Circuitos em Engenharia - 4ª edição - Ed. Pearson Education do Brasil - 2013.

In the circuit show in Figure 10-08.1, knowing that V_o = 12 V, calculate the value of R

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Problem 10-9    Source:   Problem elaborated by the author of the site.

In the circuit show in Figure 10-09.1, calculate:

a) The currents i₁ and i₂.

b) What is the power dissipated in the 20 ohms resistor?

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Problem 10.10    Source:    Problem 3.52 - page 61 -    NILSSON & RIEDEL -    Book: Circuitos Elétricos - 8ª edição - Ed. Pearson Education do Brasil - 2010.

Use Delta-Star transformation and calculate the voltages V_b and V_c in the circuit show in Figure 10-10.1.

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Problem 10-11    Source:   Question 24 of the access test Professor of Electrical of the IF of Santa Catarina (Brazil) Edital 42/2014.

In the circuit show in Figure 10-11.1, calculate the value of the currents i₂ , i₃ and i₄ about resistors R₂ , R₃ and R₄, respectively.

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Problem 10.12    Source:    Problem 2.57 - page 74 -    IRWIN, J. David -    Book: Análise de Circuitos em Engenharia - 4ª edição - Ed. Pearson Education do Brasil - 2013.

Determine the value of I_o in the circuit show in Figure 10-12.1.

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Problem 10-13    Source:   Problem elaborated by the author of the site.

Use a voltage divider and calculate the voltage V_bc in the circuit show in Figure 10-13.1.

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Problem 10-14    Source:   Problem elaborated by the author of the site.

Use a voltage divider and calculate the voltage V_bc in the circuit show in Figure 10-14.1.

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Problema 10-15    Source:   Problem elaborated by the author of the site.

In the circuit show in Figure 10-15.1 all the bulbs are 4 volts and have a power of 16 watts each. It is understood that when the lamp dissipates the nominal power (16 watts) it will be at maximum brightness. It is requested:

a) With S₁ closed and S₂ open, the lamps will light at maximum brightness?

b) With S₁ open and S₂ closed, which lamps will light at maximum brightness?

c) With both keys, S₁ and S₂ closed, which lamps will light at maximum brightness?

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Problem 10-16    Source:   Problem elaborated by the author of the site.

In the circuit show in Figure 10-16.1, determine:

a) The value of I_T.

b) The values of I₁ , I₂ and I₃.

c) The power dissipated in the resistor of 1.6 Ω.

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Problem 10-17    Source:   Problem elaborated by the author of the site.

Find the value of V with the information provided by the circuit shown in Figure 10-17.1.

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Problem 10-18    Source:   Problem 3.23 - page 65 -    O'MALLEY, John -    Book: Análise de Circuitos - 2ª ed. - Coleção Schaum - Ed. Makron Books - 1994.

Find the value of V_ab over the open circuit as shown in the circuit show in Figure 10-18.1.

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Problem 10-19    Source:   Problem 2.24 - page 66 -    IRWIN, J. David -    Book: Análise de Circuitos em Engenharia - 4ª edição - Ed. Pearson Education do Brasil - 2013.

The circuit shown in Figure 10-19.1 is used in digital-to-analog converters. Determine expressions for I₁, I₃ and I₅ in terms of I_o.

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Problem 10-20    Source:   Problem F6 of the list of UFRGS - 2016.

The current measured by the ammeter A in the circuit of Figure 10-20.1 it is the same when both keys are open or closed. Determine the value of R.

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Problem 10-21    Source:   Problem elaborated by the author of the site.

From the circuit shown in Figure 10-21.1, determine:

a) The values of I and I₁.

b) The power dissipated by the resistor 14 ohms.

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Problem 10-22    Source:   Problem elaborated by the author of the site.

From the circuit shown in Figure 10-22.1, knowing that V = 60 volts, determine:

a) The voltage in the point A, that is, V_A.

b) The potential difference between the points c-e.

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Problem solving using: Kirchhoff's Law   click here!

Problem 10-23    Source:   Problem 12 - List of Problems Circuits I - School of Engineering Electrical Circuits - UFRGS - 2013 - Prof. Dr. Valner Brusamarello.

In the two circuits shown in Figure 10-23.1, R₁ and R₂ are the same. Knowing that in the first circuit V = (1/3) E, determine I in the second circuit.

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