Calculus Based Physics with Examples - Handwritten Notes | PHYS 2110, Study notes of Physics

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For the voltage across the capacitor:

For the current through the capacitor:

The "RC" is referred to as "τ," and is called the capacitive time constant. It's the time required for the exponential to drop to ~37% of its value at zero. (Or grown to 63% of its ending value.)

Example: We charge a 40.0μF capacitor through a 930kΩ resistor with at 6.00V battery. Find the current through & voltage across the resistor at (a) t= 30.0 s and (b) t = 3000 s.

Ch 28 P 31, 36

(Due the Wed after break with the rest.)

Test covers 2328.