If the magnetic field strength is 20 μT at a distance of 3.0 cm from a long,straight,very thin current-carrying wire,the field will be 5 μT 12 cm away from the wire.

Question

Quizplus · Accepted Answer

The magnetic field strength decreases as the distance from the wire increases. The fact that the field is weaker (5 μT) at a greater distance (12 cm) from the wire than at a closer distance (3.0 cm) indicates that the answer is true.

If the Magnetic Field Strength Is 20 μT at a Distance