Electron Beam #

Question Text#

An electron beam with a radius of 0.66 \(\textrm{mm}\) has a measured current of 53\(\rm\ \mu A\). 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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Attribution#

Problem is licensed under the CC-BY-NC-SA 4.0 license.
The Creative Commons 4.0 license requiring attribution-BY, non-commercial-NC, and share-alike-SA license.