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## Homework Statement

## Homework Equations

KVL: At any instant in a closed loop the algebraic sum of the e.m.f's acting round the loop is equal to the algebraic sum of the p.d's round the loop.

## The Attempt at a Solution

3.1

R1 = BROWN, RED, BLACK, NONE

R2 = BROWN, GREY, BROWN, SILVER

R3 = ORANGE, WHITE, BROWN, GOLD

R4 = BROWN, BLACK, RED, SILVER

R5 = BROWN. RED, RED, RED

3.2

I want to add R2 and R4 because they are in series. 180ohms + 1000ohms = 1180ohms

The R2+R4 are in parallel with R5. (1/1180+1/1200)^-1=594.96ohms

Using KVL:

V=IR

9=I1x12

I1=9/12=0.75A

I2=9/594.96=0.015A

I3=5/390=0.013A

Okay so I'm pretty sure this is not correct but the middle area with R2, R4 and R5 is really confusing me.

Why is there I5 when we already have current I2?

Also I assume I4 is the little arrow indicated above R4 but by that reasoning then there should be a current above R2 as well?

Please help me understand this.