DC and AC Response of Resistor, Capacitor and Inductor
DC and AC Response Resistor, Capacitor and Inductor In our previous section, we discussed the fundamentals of resistor, capacitor and inductor. We also discussed how we measured the resistance of a resistor. Today we will discuss about the identification of resistor, capacitor and inductor using a ohm meter. We know that ohm meter is used to measure the resistance of a resistor. We can also use ohm meter to identify capacitor and inductor. To understand it , we have to understand the AC And DC response of a resistor, capacitor and inductor. Resistor For resistor, DC current and voltage are constant with time. AC current and voltage are also constant and in phase with each other. Capacitor For capacitor, initially when we applied a dc voltage across a capacitor, current is maximum and voltage is minimum and with time current decreases exponentially and voltage increases exponentially. And current leads volgate by 90 degree or voltage lags current by 90 degree.