| Term | Definition |
|---|
| signal attenuation and capacitor discharge | two examples of exponential decay? |
| Q, I, V | when a capacitor is discharged, what three quantities fall with similar exponential curves |
| tau | time constant symbol |
| tau = RC | time constant equation |
| s | units for tau |
| time taken for the charge, current or pd to fall to 1/e of its initial value: 0.37 or 37% | definition of time constant |
| V = V0 e -t / RC | equation to find pd at any time during discharge of capacitor |
| I = I0 e -mu x | equation for intensity of a signal (attenuation) |
| mu | symbol for attenuation coefficient |
| a lot of attenuation over a short distance | what does a large value for mu mean? |
| m-1 | units of mu (attenuation coefficient) |
Combine with other sets
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