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- Sep 5, 2008
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Ok so want to completely understand the relationship between C,Q,R,V. Based on other threads, I get the following idea.
-Capacitance and Resistance are both independent variables
C=kA/d and R=rhol/A, so it is sufficient to say in simple words that any changes in circuits does not affect C and R?
Voltage is set by the battery,
-->so based V=IR, if I increase this voltage, the current will increase and resistance will remain constant.
--> based on C=Q/V=Q/IR, R is not affected by changing voltage, but V increase the current and the charge of the capacitance.
In short, V doesnt change the C and R of a circuit??
-->Additionally, to decrease the time needed to charge a capacitor, can we increase the voltage?
Resistors in parallel allow for more work for the same amount of current?
What exactly is meant by the statement that as the voltage between the parallel plates increase, the capacitance increases?
many many thanks
-Capacitance and Resistance are both independent variables
C=kA/d and R=rhol/A, so it is sufficient to say in simple words that any changes in circuits does not affect C and R?
Voltage is set by the battery,
-->so based V=IR, if I increase this voltage, the current will increase and resistance will remain constant.
--> based on C=Q/V=Q/IR, R is not affected by changing voltage, but V increase the current and the charge of the capacitance.
In short, V doesnt change the C and R of a circuit??
-->Additionally, to decrease the time needed to charge a capacitor, can we increase the voltage?
Resistors in parallel allow for more work for the same amount of current?
What exactly is meant by the statement that as the voltage between the parallel plates increase, the capacitance increases?
many many thanks