Answer:
[tex]B=3.4\times 10^{-29} T[/tex]
Explanation:
The magnetic force is given by the formula
[tex]F_m=evB\sin\theta[/tex]
[tex]e=1.6\times 10^-19} ev[/tex], is the proton charge
[tex]\therefore 1.45\times 10^{-16}=1.6\times 10^{-19}\times 3.80\times 10^7\times B\times\sin 45^0[/tex]
[tex]\implies 1.45\times 10^{-16}=B\times 4.2992\tmies 10^{-12}\\\therefore B=\frac{1.45\times 10^{-16}}{4.2992\tmies 10^{-12}}=3.4\times 10^{-29} T[/tex]
