Two Parallel Wires Carrying Equal Currents of 10 a Attract

question 45

Multiple Choice

Two parallel wires carrying equal currents of 10 A attract each other with a force of 1 mN. If both currents are doubled, the force of attraction will be:

• A) 1 mN
• B) 4 mN
• C) 0.5 mN
• D) 0.25 mN
• E) 2 mN

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