Given a hall voltage of 2. 5 µv and if a 2. 50-t field applied across a 10-gauge copper wire carrying a 21. 0-a current. What is the diameter of the copper wire?.

Julia would be observing a. static electricity was caused by her sweater rubbing against her shirt and transferring electrons. she didn't touch anything metal, so that would cancel out b.she most likely didn't rub her sweater against her hair either, so that cancels out c.she also didn't scoot across the carpet while trying to take her sweater off, that cancels out d.so that leaves a.a. is correct.

By dividing you can find the answer

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