Question

dado os circuitos abaixo, determine a resistência equivalente

Answer 1

R1=1
R2=6
R3=2
R4=4
R5=3
R6=5


Re=R1+R2
Re=1+6
Re=7♎

Ru=R3+R4
Ru=2+4
Ru=6
$r b= \frac{ru \times r5}{ru + r5} \\ rb = \frac{6 \times3 }{6 + 3} \\ rb = \frac{18}{9} \\ rb = 2$
Rb=2♎


Ry=Rb+R6
Ry=2+5
Ry=7♎
$rtt = \frac{ry \times re}{ry + re} \\ rtt= \frac{7 \times 7}{7 + 7} \\ rtt= \frac{49}{14} \\ rtt = 3.5$

Rtt=3,5♎


b)
R1=5
R2=7
R3=4
R4=3
R5=9


Ra=R1+R2
Ra=5+7
Ra=12♎

$rx = \frac{ra \times r3}{ra + r3} \\ rx = \frac{12 \times 4}{12 + 4} \\ rx = \frac{48}{16} \\ rx = 3$
Rx=3♎

Rp=Rx+R5
Rp=3+9
Rp=12♎

$rtt = \frac{rp \times r4}{rp + r4} \\ rtt = \frac{12 \times 3}{12 + 3} \\ rtt = \frac{36}{15} \\ rtt = 2.4$
Rtt=2,4♎