Two Long Parallel Wires 40 Cm Apart Are Carrying Currents

question 17

Multiple Choice

Two long parallel wires 40 cm apart are carrying currents of 10 A and 20 A in the opposite direction.What is the magnitude of the magnetic field halfway between the wires?

• A)1.0 x 10^-5 T
• B)2.0 x 10^-5 T
• C)3.0 x 10^-5 T
• D)4.0 x 10^-5 T

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