Electrical Engineering - Capacitors - Discussion
Discussion Forum : Capacitors - General Questions (Q.No. 22)
22.
An uncharged capacitor and a 1 k
resistor are connected in series with a switch and a 6 V battery. At the instant the switch is closed, the voltage across the capacitor is
resistor are connected in series with a switch and a 6 V battery. At the instant the switch is closed, the voltage across the capacitor isDiscussion:
12 comments Page 2 of 2.
Mani said:
1 decade ago
Voltage across the capacitor cannot change immediately since, it requires infinite current to flow. This is physically impossible. (i=C dv/dt). Since, before closing the switch voltage across the capacitor is ZERO and at the instant switch has been closed also voltage across the capacitor is ZERO.
Rathi said:
1 decade ago
Yes, the capacitor takes some time to charge.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers