Answer:
The magnitude of the current flowing through the wire is 7 A.
Step-by-step explanation:
Given that,
Radius of the circular loop, r = 4 mm = 0.004 m
Magnetic field at the centre of the loop, B = 1.1 mT
We need to find the magnitude of the current flowing through the wire. The magnetic field at the center of the loop is given by the formula as follows :

So, the magnitude of the current flowing through the wire is 7 A.