Answer:
B = 0.75 T
Explanation:
As we know that the force on a moving charge in magnetic field is given by the formula
[tex]F = qvB[/tex]
here we have
[tex]B = \frac{F}{qv}[/tex]
here we know that
[tex]F = 4.8 \times 10^{-13} N[/tex]
[tex]q = 1.6 \times 10^{-19} C[/tex]
[tex]v = 4 \times 10^6 m/s[/tex]
now from above equation we have
[tex]B = \frac{4.8 \times 10^{-13}}{(1.6 \times 10^{-19})(4 \times 10^6)}[/tex]
[tex]B = 0.75 T[/tex]
