A cosmic ray proton moving toward the Earth at 3.5x 10^7 ms experiences a magnetic force of 1.65x 10^-16 N. What is the strength of the magnetic field if there is a 45° angle between it and the proton's velocity?

Respuesta :

Answer:

Magnetic field, [tex]B=4.16\times 10^{-5}\ T[/tex]

Explanation:

It is given that,

Velocity of proton, [tex]v=3.5\times 10^7\ m/s[/tex]

Magnetic force, [tex]F=1.65\times 10^{-16}\ N[/tex]

Charge of proton, [tex]q=1.6\times 10^{-19}\ C[/tex]

We need to find the strength of the magnetic field if there is a 45° angle between it and the proton's velocity. The formula for magnetic force is given by :

[tex]F=qvB\ sin\theta[/tex]

[tex]B=\dfrac{F}{qv\ sin\theta}[/tex]

[tex]B=\dfrac{1.65\times 10^{-16}}{1.6\times 10^{-19}\times 3.5\times 10^7\times sin(45)}[/tex]

B = 0.0000416 T

[tex]B=4.16\times 10^{-5}\ T[/tex]

Hence, this is the required solution.