When Two Long Parallel Wires Carry Unequal Currents, the Magnitude $\sqrt { 2 }$

question 149

Multiple Choice

When two long parallel wires carry unequal currents, the magnitude of the magnetic force that one wire exerts on the other is F. If the current in both wires is now doubled, what is the magnitude of the new magnetic force on each wire?

• A)16F
• B)8F
• C)4F
• D)2F
• E)F \(\sqrt { 2 }\)

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