Logged out
Access All our Essays in an Instant
Swap your work for FREE access, or pay £4.99 for instant access
Investigate variation of the voltage across a capacitor as it charges up.
Member rating:
(2 votes)
| Words:
| Submitted: Tue Jan 25 2005
Page Preview
On the left is an image preview of every page of this document, and below are the first 150 words with formatting removed:
Experiment 3: RC Circuits Date: 22.03.2004 OBJECTIVE: 1. To investigate variation of the voltage across a capacitor as it charges up. 2. To determine the capacitive time constant. THEORY: RC CIRCUIT An RC circuit is a circuit consisting of a resistor and a capacitor connected in series to a cell or battery as shown in a. When switch S is closed as shown in b current will start to flow through the circuit. Electrons from the negative terminal of the battery will accumulate on the lower plate of the capacitor. This process is called charging a capacitor through a resistance . Electrons from the upper plate of the capacitor will flow into the positive terminal, leaving a positive charge on the upper plate. As charge accumulates on the capacitor, the potential difference across it increases, and the current is reduced until the voltage across the capacitor equals the voltage of the battery. No...
To see the full version of this document, and 145,345 others
