Electron Beam #
Question Text#
An electron beam with a radius of 0.33 \(\textrm{mm}\) has a measured current of 164\(\rm\ \mu A\). What is the magnitude of the current density in the beam?
Answer Section#
Please enter in a numeric value in \( A / m^2 \) .
pl-submission-panel#
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Problem is licensed under the CC-BY-NC-SA 4.0 license.