1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
inessss [21]
3 years ago
9

Find the currents flowing in the circuit in the figure below. (Assume the resistances are

Physics
1 answer:
Nitella [24]3 years ago
6 0

By Kirchoff's law in left side loop

E_1 + E_2 = {r_1 + R_1 + R_4)I_1 + (R_2 + r_2) I_3

similarly kirchoff's law in right side loop

E_3 - E_4 - E_2 = (r_3 + r_4 + R_3)I_2 - (R_2 + r_2)I_3

also by junction law we know that

I_1 = I_2 + I_3

now by plug in all values we have

18 + 3 = (0.5 + 8 + 15)I_1 + (10 + 0.25)I_3

21 = 23.5I_1 + 10.25I_3

12 - 24 - 3 = (0.75 + 0.25 + 12)I_2 - (10+ 0.25)I_3

-15 = 13I_2 - 10.25I_3

So by solving above equations we have

I_1 = 0.492 A

I_2 = -0.428 A

I_3 = 0.920 A

You might be interested in
A 10kg roller coaster does a loop-de-loop and it’s your job to make sure it is safe. The people will fall out if the cart’s spee
Bingel [31]

Answer:

3

Explanation:

6 0
3 years ago
I need help please in my homework
Lady bird [3.3K]

Answer:

Correct answer: vₓ = 30V , i₀ = 5A

Explanation:

You first calculate the equivalent resistance of the parallel connection of two resistances of 12 and 6 ohms.

1/ Re₁ = 1/12 + 1/6 = (12 + 6) / (12 · 6) => 1/Re₁ = 18/72 => 1/Re₁ = 1/4 =>

Re₁ = 4Ω

then you calculate the equivalent resistance of a series connection of two resistances of 8 and Re₁ = 4Ω

Re₂ = Re₁ + 8 = 4 + 8 = 12Ω

then you calculate the electric current according to Oh's law

i₀ = vc / Re₂ = 60 / 12 = 5A

at the end you calculate the voltage drop vₓ on the resistor of 6Ω

vₓ = i₀ · 6Ω = 5A · 6Ω = 30V

God is with you!!!

8 0
3 years ago
Describe how electricity flows through a simple closed circuit.
Vedmedyk [2.9K]

Answer:

Electrons are drawn from one end of the battery to the other. Connecting two of those ends allows an electric current to flow between them. Wires make a path through that current can flow from one end of a battery to the other end, which would be considered as: The north and east side

8 0
3 years ago
A restaurant records the number of tables served each night, and the results have the values: minimum = 3, lower quartile = 14,
dybincka [34]

To choose the correct box plot, verify each of the options and make sure all the values in the plot match the values provided.

<h3>How to identify the median?</h3>

In a box plot, this value is represented by a vertical line located in the middle of the graph.

<h3>How to identify the maximum and the minimum?</h3>

The maximum is the value located on the farthest right, while the minimum is located on the farthest left.

<h3>How to identify the quartiles?</h3>

Divide the graph into 4 and analyze how much each quartile represents.

Learn more about graphs in: brainly.com/question/16608196

#SPJ1

5 0
2 years ago
What is a simple pendulum?
soldier1979 [14.2K]

Answer:

A pendulum is weight suspended from a pivot so that it can swing freely

8 0
4 years ago
Other questions:
  • PLZ ANSWER THESE 3 QUESTIONS!! When do you use a power equation? When do you use an energy equation? When do you use the efficie
    10·1 answer
  • Suppose a 1,500 kg speedboat is traveling with a volcity of 13 m/s. what is the speed boat momentum
    14·1 answer
  • There are _________ constellations in the entire sky.
    12·1 answer
  • Milankovitch cycles are used to explain the cycles of cold and warm climates that characterized the ice ages based on ________.
    6·1 answer
  • A uniformly charged disk of radius 35.0 cm carries a charge density of
    13·2 answers
  • What Does Psychological Development Refer To?
    9·1 answer
  • Does anyone know what Base jump is?
    14·1 answer
  • How can a small spark start a huge explosion? using electric forces and molecules
    15·1 answer
  • Can someone please help? Thanks! The answer that I have marked is incorrect, im making corrections
    15·2 answers
  • 1) A pile driver with mass 1x10⁴ kg strikes a pile with velocity 10.0 m/s. What is the kinetic energy of the driver as it strike
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!