Design and analyze High-pass RC Network frequency response
A high pass filter can be made from, the low pass filter by merely interchanging its resistor and capacitor. However, their values are different from that of a low pass filter. Since the reactance of capacitor decreases with increase in frequency, the high frequency components in the input signal, appear at the output with less attention than the lower frequency components. In other words, lower frequencies are alternated by the circuit. At high frequency, the capacitor acts almost as a short circuit and virtually the input amplitude appears at the output. Hence, this kind of circuit is called high pass filter.