Answer : The resistance of a circuit is 2 ohm.
Explanation :
Using Ohm's law :
![V=I* R](https://img.qammunity.org/2019/formulas/chemistry/high-school/6xxmx689rlljlrgn2v7jrwu6rfrk6kilq0.png)
Or,
![R=(V)/(I)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/a84qeil9t0futi18j7vwyne4mrdr388c5r.png)
where,
R = resistance of a circuit = ?
V = voltage of circuit = 10 volts = 10V
I = current flowing in a circuit = 5 A
Now put all the given values in the above formula, we get the resistance of circuit.
![R=(V)/(I)](https://img.qammunity.org/2019/formulas/mathematics/middle-school/a84qeil9t0futi18j7vwyne4mrdr388c5r.png)
![R=(10V)/(5A)](https://img.qammunity.org/2019/formulas/physics/middle-school/f0kq37rvgt6bm2ekdo5cjdd0jd3hn9ipqe.png)
![R=2\ohm](https://img.qammunity.org/2019/formulas/physics/middle-school/ks58lp8g9aog66jpq9knmubzjtf7upj8pj.png)
Therefore, the resistance of a circuit is 2 ohm.