Two Long Straight Parallel Wires Separated by a Distance of 20

question 53

Multiple Choice

Two long straight parallel wires separated by a distance of 20 cm carry currents of 30 A and 40 A in opposite directions. What is the magnitude of the resulting magnetic field at a point that is 15 cm from the wire carrying the 30-A current and 25 cm from the other wire?

• A) 51 μT
• B) 33 μT
• C) 72 μT
• D) 64 μT
• E) 46 μT

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Monthly Compounded

Interest calculation method where interest is added to the principal balance monthly, leading to an increase in the amount of interest earned over periods.

Nominal Interest

The stated interest rate of a financial instrument, not accounting for inflation or compounding effects.

Compounded Semi-annually

Interest calculation method where the invested sum earns interest twice a year, and this interest is added to the principal for the computation of future interest.