# Find currents in this electrical circuit.

Watch
Announcements
Thread starter 5 years ago
#1
DISCLAIMER: I don't want the answer, I just want to know if I've formulated these equations correctly.

Hi, my task is to find the currents in each loop of the following circuit, using Kirchhoff's first law and Ohm's law.

I've decided to just apply Kirchhoff's law for each loop:

loop 1: 50(i1 - i2) + 30(i1 - i3) = 240V
loop 2: 50(i2 - i1) + 15i2 + 10(i2 - i3) + 25(i2 - i4) = 0V
loop 3: 30(i3 - i1) + 10(i3 - i2) + 20(i3 - i4) + 5i = 0V
loop 4: 25(i4 - i3) + (10 + 30 + 15)i4 + 20(i4 - i3) = 0V.

Are those equations correct? I don't want the answers to the equations, I just want to know if I've correctly formulated them.
0
reply
X

Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

see more

### See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

### Poll

Join the discussion

#### Have you experienced financial difficulties as a student due to Covid-19?

Yes, I have really struggled financially (44)
18.57%
I have experienced some financial difficulties (68)
28.69%
I haven't experienced any financial difficulties and things have stayed the same (89)
37.55%
I have had better financial opportunities as a result of the pandemic (30)
12.66%
I've had another experience (let us know in the thread!) (6)
2.53%

View All
Latest
My Feed

### Oops, nobody has postedin the last few hours.

Why not re-start the conversation?

### See more of what you like onThe Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.