Pasco e/m Apparatus SE-9638 NEW in-box NIB

• Sharp, Clearly Visible Electron Beam
• Lighted, Mirrored Scale Eliminates Parallax Errors
• Tube Rotates for General Study of Electrons in a Magnetic Field

In 1897, J. J. Thomson showed that the mysterious cathode rays were actually negatively charged particles— he had dis­cov­ered the electron. In the same year he measured the charge-to-mass ratio of the electron, providing the first mea­sure­ment of one of the fundamental constants of the universe.
The PASCO e/m Apparatus reproduces one version of Thomson's landmark exper­iment, providing an accurate measurement of the charge-to-mass ratio of the electron. And, since the electron tube can be rotated through 90 degrees, students can also make a more general study of the behavior of electrons in a magnetic field.

Colour: black, red

Condition: New, in - box

Usage: Scientific,  Experiment, Education 

Location: Calgary