# magnitude of the “current” flowing around the nucleus in the Bohr mode

1. The problem statement, all variables and given/known data
According to the Bohr model, a hydrogen atom in its lowest energy state has a nucleus consisting of a single proton, which is orbited by a single electron. The speed of the electron is 2.19×106 m/s and the radius of its orbit (the "Bohr radiuis") is 5.29×10−11 m. What is the magnitude of the "current" flowing around the nucleus in the Bohr model?

v=2.19e6

2. Relevant equations

equation used : I=nAvq ( i was surfing internet and found this equation, i couldn’t find equation from the book)

2nd try: equation : I = e*w, where e is elementary charge and w is revs/s.

3rd try: J=I/A J is magnitude of current density.

3. The attempt at a solution
1st: I= 1*2pi(5.29e-11)^2(2.19e6)(-1.6e-19)
I= -6.16e-30 A seems very wrong.

2nd;
e = 1.6022E-19
w = v/(2pi*r)
I = 9.46518E-4 A ( i found this on yahoo answers, but it wasn’t right, and i never seen that equation before.)