The Magnitude of the Poynting Vector of a Planar Electromagnetic

question 46

Multiple Choice

The magnitude of the Poynting vector of a planar electromagnetic wave has an average value of 0.724 W/m². What is the maximum value of the magnetic field in the wave? (c = 3.0 x 10⁸ m/s, μ₀ = 4π × 10^-7 T ∙ m/A, ε₀ = 8.85 × 10^-12 C²/N ∙ m²)

• A) 77.9 nT
• B) 55.1 nT
• C) 38.9 nT
• D) 108 nT
• E) 156 nT

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Definitions:

AASB 11

is an accounting standard that deals with the financial reporting of interests in joint arrangements.

Joint Operations

A business activity in which two or more parties share control and are jointly responsible for management, assets, and liabilities associated with the activity.

Accumulated Depreciation

The total amount of depreciation expense that has been recorded against a company's assets over their useful lives, reducing their book value.

Initial Investment

The amount of money used to start an investment, often the starting capital for a business or financial venture.