1. The problem statement, all variables and given/known data A cyclotron has oscillator frequency of 12×10^6 cycles /sec and dee radius 21 inches .Calculate the magnetic induction B needed to accelerate deutrons . Given e=1.6 ×10^-19 coulomb and M (21H )=3.3×10^-27 kg. 2. Relevant equations Frequency f= Bq/2πΜ 3. The attempt at a solution Β=(2π×3.3 ×10^ -27 ×12 ×10^6)/1.6×10^ -19 = 1.55Wb/m2. Have i done this right? Why did they give me the dee radius if didn't need it?