the strength of the magnetic field around a current-carrying wire is determined by which of the following
A. The amount of current in the wire
B. The magnetic domain
C. The magnetic force
D. The direction of the current

A. The amount of current in the wire

Explanation:

When you put the current-carrying wire in a loop shape, it will make a magnetic field. The direction of the magnetic field can be determined by the second right-hand rule. There are a few variables that can influence the strength of the field. The more current flowing on the wire, the stronger the magnetic field. Each loop will create a magnetic field, so more loop count will also increase the strength of the magnetic field.