The RC circuit has thousands of uses and is a very important circuit to study. Not only can it be used to time circuits, it can also be used to filter out unwanted frequencies in a circuit and used in power supplies, like the one for your computer, to help turn ac voltage to dc voltage. A RC circuit consists of a resistor (3.727 kΩ) and a capacitor (736μF). determine how long it takes for the capacitor to charge to 79% of the battery voltage (EMF=7V)? i.e. till the voltage across the capacitor reaches that percentage of the battery voltage.
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Significance. circuit has thousands of uses and is a very important circuit to study. Not only can it be used to time circuits, it can also be used to filter out unwanted frequencies in a circuit and used in power supplies, like the one for your computer, to help turn ac voltage to dc voltage.
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