Magnetic effect of electric current - class-10

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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?

#Physics #Class VII-X Physics

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Ronit Ray ·2013-05-31 22:58:16

Use 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

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Magnetic effect of electric current - class-10

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