Answer :
<em>cu</em><em>r</em><em>c</em><em>u</em><em>i</em><em>t</em><em> </em><em>a</em><em>n</em><em>d</em><em> </em><em>Source</em><em> </em><em>o</em><em>f</em><em> </em><em>c</em><em>u</em><em>r</em><em>r</em><em>e</em><em>n</em><em>t</em><em> </em><em>.</em>
It would be 0-20/4 so it’d be -5 meters per second
Do you have the answer for this question? so i can provide u solution more effectively
The answer is <span>C: Experiment
</span>
The magnetic field is

what is magnetic field?
Magnetic field is defined as the relationship between the permittivity of free space,the magnitude of electric current,and distance.
Here is the formula,

here,
B= magnitude of the magnetic field
l= magnitude of electric current
R=distance
µ0=permittivity of free space
Now,using above formula we can calculate the magnetic field



Thus,the magnetic field is

learn more about magnetic field from here: brainly.com/question/28326849
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