What Is the Kinetic Energy of an Electron That Passes

question 47

Multiple Choice

What is the kinetic energy of an electron that passes undeviated through perpendicular electric and magnetic fields if E = 4.0 kV/m and B = 8.0 mT?

• A) 0.65 eV
• B) 0.71 eV
• C) 0.84 eV
• D) 0.54 eV
• E) 1.4 eV

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