What is the magnetic field that exerts a force of 2.4 x 10 -4 newtons on a current of 12 amperes in a wire 30 cm , long set perpendicular to the field?
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1 Answers
5Use the formula
F= I * B * L
where F is the force
I is the current
B is the magnetic field strength,
L is the length of the conductor.
Therefore u can rewrite the equation as
B= FI * L
putting values, B= 2.4*10-412*0.3
Hence your answer comes to 6.67 * 10-5 tesla or weber/meter2
Hope this helps