Respuesta :

PBCHEM
Answer : Option C) 2.5 units

Explanation : For calculating the strength of a unknown magnetic field in comparison with the given magnetic field we can use the magnetic formula as;

[tex] \frac{ S_{1}}{S_{2}} = \frac{ (D_{1}^{2}) }{(D_{2}^{2})} .[/tex]

On substituting the values we get; 

[tex] \frac{10}{x} = \frac{4^{2}}{2^{2}} [/tex] ;

On solving we get the magnetic B field strength as 2.5 units


pegisy

Answer:

Option C) 2.5 units

Explanation:

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