How would you determine the magnitude of the magnetic force on a 120 m length of line?
An electric power line carries a current of 1100 A in a location where the earth's magnetic field is 6.0 ✕ 10^-5 T . The line makes an angle of 75° with respect to the field.
An electric power line carries a current of
1 Answer
Nov 23, 2017
Explanation:
The magnitude of the magnetic force is given by
vecF is the vector value for the magnetic force (N )vec(B) is the vector value for the magnetic field strength (T )vecI is the vector value for the current (A )l is the length of material being acted upon by the magnetic field (m )theta is the angle between the current and magnetic field (hence why the vector arrows are needed)
The arrows are there for the vector values, as
)
Using the equation, we get:
