Two Long Parallel Wires Carry Currents of 20 a and 5.0

question 50

Multiple Choice

Two long parallel wires carry currents of 20 A and 5.0 A in opposite directions.The wires are separated by 20 cm.At what point between the two wires do they produce the same strength magnetic field?

• A)4.0 cm from the 20 A wire
• B)8.0 cm from the 20 A wire
• C)12 cm from the 20 A wire
• D)16 cm from the 20 A wire
• E)18 cm from the 20 A wire