Question

List out at least 3 uses for an RC circuit and explain how the RC would affect the use.

Answer 1

1.Capacitors are generally cheaper and easier to work with than inductors for making time delay circuits. So,When a circuit designer needs a circuit to provide a time delay, he or she almost always chooses an RC circuit instead of an LR circuit

2.Hi-pass filter--admits high frequency AC signals (for which the polarity changes faster than the capacitor can charge/discharge), but rejects low frequency signals (for which the capacitor has time to charge up and block the signal. Such a filter would obviously have a much quicker discharge time (tiny fractions of a second) than the example above, which charge/discharge over a period of seconds.

3. Wien bridge oscillator. In this circuit, two RC circuits are used, one with the RC components in series and one with the RC components in parallel. The Wien Bridge is often used in audio signal generators because it can be easily tuned using a two-section variable capacitor or a two section variable potentiometer (which is more easily obtained than a variable capacitor suitable for generation at low frequencies).