In a Mass Spectrometer Ions of Ni with Mass 9 $\times$

Multiple Choice

In a mass spectrometer ions of Ni with mass 9.62 $\times$ 10^-26 kg and charge +2e are accelerated through a potential difference of X volts and then deflected in a magnetic field of 0.15 T.If the radius of curvature of the ions is 0.55 m,then calculate the value of the potential difference X.

A) 5.7 kV
B) 274 kV
C) 137 kV
D) 11.3 kV
E) none of the above