A Type of Transmission Line for Electromagnetic Waves Consists of Two

question 50

Multiple Choice

A type of transmission line for electromagnetic waves consists of two parallel conducting plates (assumed infinite in width) separated by a distance a.Each plate carries the same uniform surface current density of 16.0 A/m,but the currents run in opposite directions.What is the magnitude of the magnetic field between the plates at a point 1.00 mm from one of the plates if a = 0.800 cm? (μ₀ = 4π × 10^-7 T • m/A)

• A) 3.20 × 10^-3 T
• B) 1.00 × 10^-5 T
• C) 4.63 × 10^-5 T
• D) 2.01 × 10^-5 T
• E) 7.07 × 10^-4 T

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