A lightning bolt may carry a current of 1.00 104 A for a short time. What is the resulting magnetic field 110 m from the bolt? Suppose that the bolt extends far above and below the point of observation

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A lightning bolt may carry a current of 1.00 104 A for a short time. What is the resulting magnetic field 110 m from the bolt? Suppose that the bolt extends far above and below the point of observation.

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Given,

I=1×104ASince we know magnetic field is given byB=μ0I2πr=4π×10-7×1×1042π×110=18.18μT

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