Question

The descending order of $\frac{e}{m}$ ratio for the electron(e), proton(p) and neutron(n) is

• A.
  e> n > p
• B.
  n > p > e
• C.
  e > p > n
• D.
  n > e > p

Answer 1

The correct option is C

e > p > n
The $\frac{e}{m}$ values is as follows:
electron = $1.76\times {10}^{11}$C/kg
proton = $9.6\times {10}^7$C/kg and
neutron = zero