Electronics - Capacitors - Discussion
Discussion Forum : Capacitors - General Questions (Q.No. 3)
3.
When is a capacitor fully charged?
when the voltage across its plates is 
of the voltage from ground to one of its plates
of the voltage from ground to one of its plateswhen the current through the capacitor is the same as when the capacitor is discharged
when the voltage across the plates is 0.707 of the input voltage
when the current through the capacitor is directly proportional to the area of the plates
Discussion:
19 comments Page 1 of 2.
Syed asif rehman said:
1 decade ago
Capacitor charges equal to the voltage applied. Then it is disconnected but the charge remains the same even if it is disconnected. So when it is discharged using resistor, the flow of current is same as it is charged to the extent of battery.
Nilesh said:
1 decade ago
But capacitor charging depend upon directly proportional to the area off plate.
RM bahuguna said:
1 decade ago
Capacitor is fully charged when no current flowing through it.
Agam said:
1 decade ago
When capacitor is charged. How much current is flowing through it?
Rahulur said:
1 decade ago
When capacitor is fully charged, it act as an Open circuit because.
I = 0 between 2 equal voltage sources.
After 5T, capacitor discharges and I becomes 0.
I = 0 between 2 equal voltage sources.
After 5T, capacitor discharges and I becomes 0.
Mahinder said:
1 decade ago
When capacitor is discharged then the capacitor is ready for used and then its work start.
Faizan said:
1 decade ago
Correct answer for this question should be that, a capacitor fully charged when the current through it is zero.
Ashishpal said:
1 decade ago
Capacitor is fully charged means that the voltage of capacitor is equal to the voltage of the battery.
Christine Ashimwe said:
1 decade ago
The capacitor is fully charged., If the voltage is constant, there's no current. If the voltage on both sides of the resistor is the same, there's no current through the resistor and hence into the capacitor, so that's the steady-state - what you call "full" - the capacitor charged to the supply voltage.
Rajnish ranjan said:
1 decade ago
Capacitor is fully charged when current through it is zero.
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