A Proton Traveling at Speed of 1 $\sigma$ = $\pm$ 10 * 10^-6 C/m²

question 4

Multiple Choice

A proton traveling at speed of 1.0 * 10⁶ m/s enters the gap between the plates of a 2.0-cm-wide parallel-plate capacitor along x-axis.The surface charge densities on the plates are $\sigma$ = $\pm$ 1.0 * 10^-6 C/m².How far has the proton been deflected sideways ( $\Delta$ y) when it reaches the far edge of the capacitor? Assume the electric field is uniform inside the capacitor and zero outside.

• A)1.33 mm
• B)2.17 mm
• C)4.7 mm
• D)0.96 mm

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