A particle of mass m and charge Q moving with velocity \(v\) describes a circular path of radius R when subjected to a uniform transverse magnetic field B. The work done by the field when the particle completes one full circle is

A. public class Circle implements Shape { private int radius; }B. public abstract class Circle extends Shape { private int radius; }C. public class Circle extends Shape { private int radius; public void draw(); }D. public abstract class Circle implements Shape { private int radius; public void draw(); }E. public class Circle extends Shape { private int radius; public void draw() { /* code here */ } }F. public abstract class Circle implements Shape { private int radius; public void draw() { /* code here */ } }