If the Z-Component of the Magnetic Field of an Electromagnetic

question 42

Multiple Choice

If the z-component of the magnetic field of an electromagnetic wave traveling in the +x direction through vacuum obeys the equation B_z(x, t) = (1.25 μT) cos[(3800 m^-1) x - (1.14 × 10^-12 rad/s) t], what is the largest that the y component of the electric field can be? (c = 3.0 x 10⁸ m/s)

• A) 375 N/C
• B) 4.17 × 10^-15 N/C
• C) 3.75 × 10⁸ N/C
• D) 4.17 × 10^-9 N/C
• E) 1.25 × 10⁶ N/C

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Definitions:

FIFO

An inventory valuation method where the first items purchased or produced are the first ones sold, affecting the costs of goods sold and ending inventory.

Gross Profit

The difference between sales revenue and the cost of goods sold, before deducting overheads, interest, taxes, and other expenses.

FIFO

First In, First Out, an inventory valuation method where the earliest items added to inventory are the first to be removed, impacting cost of goods sold and inventory valuation.

Costs

The expenses incurred in acquiring or producing goods and services.