Yes, electron microscopes require electricity. Electricity is essential for powering the electron microscope's components, such as the electron gun, magnetic lenses, and vacuum pumps.

- The electron gun, which produces the beam of electrons,

requires a high voltage power supply to accelerate the electrons.

- The magnetic lenses, which focus and direct the electron beam,

are powered by electromagnetic coils.

- The vacuum pumps, which maintain a vacuum inside the microscope chamber,

also require electricity to operate.