2007-03-23 11:18:13 · 5 answers · asked by ... 3 in Science & Mathematics ➔ Physics
Start with Q=CV:
Q=CV=CIR
C/I=RC
C has units in coulombs
I has units in coulombs/second
RC=C/I=coulombs/(coulombs/second)
RC=seconds
2007-03-23 11:33:00 · answer #1 · answered by Elisa 4 · 0⤊ 0⤋
Indeed, good college type answers. The only place that knowing the charge is going to matter is the circuit load on the source power supply in a practical device. That, has already been done, and is a constant in design engineering. What you need is T=RC, what is the resistance, what is the capacitance in Microfarad's, and T is measured in seconds. A capacitor is considered charged when it reaches 63% of it's applied voltage. This is why the trigger point for a device like the 555 timer is set at 63%.
2007-03-23 13:32:52 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Q Cv Units
2016-10-15 06:38:17 · answer #3 · answered by esker 4 · 0⤊ 0⤋
t= coulumbs/ampere
t=RC let R=V/I and C=Q/V, directly substitution and youll get what you want..
2007-03-23 11:28:40 · answer #4 · answered by bambinoski 2 · 0⤊ 0⤋
t=RC= V/IxC=CV/I=Q/I sec.
2007-03-23 12:23:26 · answer #5 · answered by Anonymous · 0⤊ 0⤋