I'm so screwed for tomorrow's physics test. Ampere, Faraday, Biot-Savart, Wtf, etc.
So current density means current/Area! It took me 20 minutes to figure that out. (density = 1/volume....??)
Don't worry. premed E&M is easier. Someone remind me why I picked physics over neurobio.
Anyway. wish me luck people. I'll need it for this test. Oh and take an umbrella tomorrow (N/A for plano, dallas, CA, Japan, etc)
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