Using problem 1 for reference please solve for problem 2. Problem 1: A current o

Question

Using problem 1 for reference please solve for problem 2.

Problem 1: A current of 10.0 kA runs through a long, straight power line that hangs 35 m in the air. What is the strength of the magnetic field at the ground due to the power line?

Problem 1 Solution: 2.82x10^-4 T

Problem 2: Earth’s magnetic field strength varies over the Earth’s surface, but ranges between 25 000 nT and 65 000 nT (nano-Tesla). How does the magnetic field you calculated for the power line in the previous problem compare to Earth’s magnetic field? Is it much larger, much smaller, or about the same?

Explanation / Answer

Magnetic filed due to power line is much larger as compare to earth's magnetic field.

we can see magneic filed due to power line is 2.82*10^-4 T while agnetic filed due to eart in the range of 25 000 nT and 65 000 nT (nano-Tesla)

that means it is higer around 10^5 time the earth magnetic field

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