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rado202 rado202
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2 months ago

The rms electric field strength at a distance r from a 25 W light source is found to be 4.33 N/C. What is the distance r?



22 m



6.3 m



30 m



▸ 40 m
Textbook 
College Physics

College Physics


Edition: 5th
Author:
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sherbiejr16sherbiejr16
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2 months ago
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