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## Sagot :

parallel,effective resistance

**1/R=1/R₁ +1/R₂ +1/R₃...**

Here,effective resistance 1/R =1/7 +1/5+ 1/4+1/2

**=**1.092

R = 1/1.092 =0.915Ω

voltage V=9 V

current

**I=V/R**

I=9 / 0.915

=9.83 A

__[tex] \frac{1}{7} [/tex] + [tex] \frac{1}{5} [/tex] + [tex] \frac{1}{4} [/tex] + [tex] \frac{1}{2} [/tex]__

=[tex] \frac{140}{153} [/tex]

now , V= 9V

V = IR

I = [tex] \frac{V}{R} [/tex]

I = [tex] \frac{9}{140} [/tex] x 153

I = 9.835714 A