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1. What is the relationship between power and bulb brightness (intensity)? Explain your answer referencing Data Tables 4, 5 and 6.
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Currents in dc transmission lines can be 100 a or higher. some people are concerned that the electromagnetic fields from such lines near their homes could pose health dangers. for a line that has current 150 a and a height of 8.0 m above the ground, what magnetic field does the line produce at ground level? express your answer in teslas and as a percentage of the earth’s magnetic field, which is 0.50 g. is this value cause for worry?
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Frequency of electromagnetic waves that a radio station is assigned. what do you call this type of wave?
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1. What is the relationship between power and bulb brightness (intensity)? Explain your answer refer...
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