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Back to 24.4 Energy in Electromagnetic Waves

Integrated Concepts

Avg difficulty 2.5

Electromagnetic radiation from a 5.00-mW laser is concentrated on a 1.00-mm21 . \text{00} -\text{mm}^{2} area. (a) What is the intensity in W/m2\text{W}/\text{m}^{2}? (b) Suppose a 2.00-nC static charge is in the beam. What is the maximum electric force it experiences? (c) If the static charge moves at 400 m/s, what maximum magnetic force can it feel?

OpenStax College Physics 2e, 24.4 Energy in Electromagnetic Waves, exercise 17

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.