Aswer:
To find the resistance of a circuit, Ohm's law is used:
[tex]\boxed{\mathbf{R= V \ / \ i }}[/tex]
Taking as data:
Volts(v) = 36
Current(I) = 9 amps
Resistance(r) = ¿?
We replace according to the formula:
v/i = r
[tex]\mathbf{{36 \ / \ 9 = 4}}[/tex]
Result: The resistance of the circuit is 4 Ohms.