Each of Two Long Straight Parallel Wires Separated by a Distance

question 15

Multiple Choice

Each of two long straight parallel wires separated by a distance of 16 cm carries a current of 20 A in the same direction. What is the magnitude of the resulting magnetic field at a point that is 10 cm from each wire?

• A) 57 μT
• B) 80 μT
• C) 64 μT
• D) 48 μT
• E) 40 μT

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The exchange rate at which the demand for a currency is exactly equal to its supply in the foreign exchange market.

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