Alightning bolt may carry a current of 1.00 104 a for a short time. what is the resulting magnetic field 120 m from the bolt

B = 1.67 μ T

Explanation:

given,

current, I = 1 x 10⁴ A

r = 120 m

treating lightning bolt as long straight conductor

resulting magnitude would be equal to

    B = 16.67 x 10⁻⁶ T

    B = 1.67 μ T

The resulting magnetic field is equal to B = 1.67 μ T

1.67 x 10^-5 Tesla

Explanation:

Current, i = 1 x 10^4 A

distance, d = 120 m

The formula for the magnetic field due to long straight current carrying conductor is given by

B = 1.67 x 10^-5 Tesla

b. a lightning bug, plug of grass, and a worm