Question

find the equivalent resistance of the value of R3 in the given parallel circuit​

Answer 1

Explanation:

Refer to the attachment.

please mark it as a brainlist answer.i gave effort.

Answer 2

Answer:

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$\boxed{ \fcolorbox{blue}{yellow}{solution}}$

E=90V

I=6A

R1= 30Ω

R2=40Ω

R3=?

Explanation:

$\boxed{ \fcolorbox{blue}{yellow}{equivalent resistance \:of \: circuit }}$

$r = \frac{e}{1} \\ \\ = \frac{90}{6} = 15Ω$

R= 15.0 Ω

also,

1/R=1/R1 + 1/R2 +1/R3

or 1/15 = 1/30+1/40+1/R3

1/R3= 1/120

$r^{3} = 120.0 \: Ω$

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