Answer : The electric current of a circuit is, 2.8 A.
Explanation :
Using Ohm's law :
[tex]V=I\times R[/tex]
Or,
[tex]I=\frac{V}{R}[/tex]
where,
R = resistance of a circuit = 28 Ω
V = voltage of circuit = 76 volts = 76 V
I = current flowing in a circuit = ?
Now put all the given values in the above formula, we get :
[tex]I=\frac{V}{R}[/tex]
[tex]I=\frac{76V}{28\Omega }[/tex]
[tex]I=2.8A[/tex]
Therefore, the electric current of a circuit is, 2.8 A