In this episode, you will see a oscilloscope to measure a capacitor and view the effects of capacitance on a basic circuit.
Learn about the three different effects capacitance has on electrical systems. Knowing the effects of capacitance will help you learn how to use capacitors and how to identify unwanted capacitive influences in your systems.
Capacitors are the most common cause of capacitive effects, but capacitance is an inherent electrical property of basically every material.
So, what do capacitors do?
First, capacitors resist a change in voltage by storing or releasing charge. The ability of capacitors to store charge based on the formula Q=CV means that as a voltage is applied to the capacitor, it will start to store that energy instead of passing it through the system.
Second, capacitors filter frequency components of AC signals. Depending on the configuration, capacitors will filter high or low frequencies out of a capacitor. A capacitor allows high frequency components to pass through it and blocks low frequency signal components.