What Is the Maximum Value of the Magnetic Field at a Distance

question 32

Multiple Choice

What is the maximum value of the magnetic field at a distance of 2.5 m from a light bulb that radiates 100 W of single-frequency sinusoidal electromagnetic waves uniformly in all directions? (ε₀ = 8.85 × 10^-12 C²/N ∙ m²,μ₀ = 4π × 10^-7 T ∙ m/A,c = 3.0 × 10⁸ m/s)

• A)0.10 μT
• B)0.40 μT
• C)0.50 μT
• D)0.60 μT
• E)0.80 μT

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Definitions:

Tibial Nerve

A major peripheral nerve of the lower leg that innervates the muscles of the calf and foot, as well as the skin of the lower leg.

Common Fibular Nerve

A nerve in the lower limb that branches from the sciatic nerve, involved in motor and sensory functions of the leg and foot.

Cervical Plexus

A network of nerves formed by the anterior rami of the first four cervical spinal nerves, which supply motor and sensory innervation to the neck, shoulders, and upper chest.

Phrenic Nerve

The Phrenic Nerve is a nerve that runs from the neck to the diaphragm, playing a crucial role in breathing by controlling the diaphragm's movements.