Chapter 19, Problem 62QAP

To determine

(a)

Magnitude and the direction of the force that Earth's magnetic field exerts on a $32\text{ m}$ segment of power line carrying $\text{95 A}$ if the current runs from north to south

To determine

(b)

Magnitude and the direction of the force that Earth's magnetic field exerts on a $32\text{ m}$ segment of power line carrying $\text{95 A}$ if the current runs from east to west

To determine

(c)

Magnitude and the direction of the force that Earth's magnetic field exerts on a $32\text{ m}$ segment of power line carrying $\text{95 A}$ if the current runs towards northeast making an angle of $\text{30}{\text{.0}}^0$ north of east

To determine

(d)

Whether any of the above forces enough to have an appreciable effect on the power lines