What is the complex impedance of a capacitor?

What is the complex impedance of an inductor?

MEMS accelerometers can be modeled as damped

mechanical oscillators. Since they have a natural resonance frequency, they

cannot be used to measure static acceleration, only a sinusoidal acceleration

close to the resonance frequency.

Let us suppose that we have a measurement setup

with the lock-in amplifier. In addition to the AC signal at the probe

frequency, there is a DC voltage present on the lock-in input. How does the DC

voltage manifest in the detected lock-in signal?

When a plate capacitor is charged, there is a

repelling force on the plates, originating from the electrostatic interaction.