Once a jury is selected, the first dialogue in a personal injury trial comes in the form of two opening statements -- one from the plaintiff's attorney, and the other from an attorney representing the defendant.
A high-pass filter is usually modeled as a linear time-invariant system. It is sometimes called a low-cut filter or bass-cut filter.[1] High-pass filters have many uses, such as blocking DC from circuitry sensitive to non-zero average voltages or radio frequency devices.
2 Answers 2. The specific formula applies only for a first order RC low pass filter. The cutoff frequency is defined as the frequency where the amplitude of \$H(j\omega)\$ is \$1\over\sqrt2\$ times the DC amplitude (approximately -3dB, half power point). Solve it for \$\omega_c\$ (cutoff angular frequency), you'll get \$1\over RC\$.