The quality factor is defined as the ratio of stored energy and dissipated energy (see below). But the formula includes \$2\pi\$ as a constant coefficient. Why do we need \$2\pi\$ to calculate the stored and dissipated energy? I cannot understand the meaning of this constant.

$$ Q = 2\pi\frac{\textrm{Energy stored}}{\textrm{Energy lost}}$$

The quality factor is defined as the ratio of stored energy and dissipated energy (see below). The formula includes \$2\pi\$ as a constant coefficient. Why do we need \$2\pi\$ to calculate the stored and dissipated energy? I cannot understand the meaning of this constant.

$$ Q = 2\pi\frac{\textrm{Energy stored}}{\textrm{Energy lost}}$$

Quality factor is defined as the ratio of stored energy and dissipated energy (see below). But the formula includes 2pi as a constant coefficient. Why do we need 2pi to calculate stored and dissipated energy? I cannot understand the meaning of this constant.

The quality factor is defined as the ratio of stored energy and dissipated energy (see below). But the formula includes \$2\pi\$ as a constant coefficient. Why do we need \$2\pi\$ to calculate the stored and dissipated energy? I cannot understand the meaning of this constant.

$$ Q = 2\pi\frac{\textrm{Energy stored}}{\textrm{Energy lost}}$$