Two Long Parallel Wires Are Placed Side-By-Side on a Horizontal $F / 4$

Multiple Choice

Two long parallel wires are placed side-by-side on a horizontal table and carry current in the same direction. The current in one wire is 20 A, and the current in the other wire is 5 A. If the
Magnetic force on the 20-A wire has magnitude F, what is the magnitude of the magnetic force on
The 5-A wire? No external magnetic fields are present.

A) $F / 4$
B) $4 F$
C) $F / 2$
D) $F$
E) $2 F$