The "e/m" of a proton is:
Correct answer: C. Smaller than that of an electron
- A. Equal to that of an electron
- B. Greater than that of an electron
- C. Smaller than that of an electron
- D. Sometimes smaller and sometimes greater
Explanation
The charge (e) has the same magnitude for both a proton and an electron. However, the mass of a proton is about 1836 times greater than the mass of an electron. Therefore, the charge-to-mass ratio (e/m) of a proton is significantly smaller.
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Magnetic flux density and magnetic flux describe the strength of a magnetic field and the field passing through a surface. A charged particle moving through a magnetic field experiences a force perpendicular to its velocity and may follow circular or helical motion, depending on the angle between velocity and field.
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