Two Parallel Long Wires Carry the Same Current and Repel

question 22

Multiple Choice

Two parallel long wires carry the same current and repel each other with a force F per unit length.If both these currents are doubled and the wire separation tripled, the force per unit length becomes:

• A)2F/9
• B)4F/9
• C)2F/3
• D)4F/3
• E)6F

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Definitions:

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HVAC System

An acronym for heating, ventilation, and air conditioning system, which provides heating and cooling to residential and commercial buildings.

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Loose or packed soil or earth; in a mechanical context, it can refer to unwanted particulate matter that can cause wear or contamination.

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