Question:

Part A Although the evidence is weak, there has been concem in recent years over possible health effects from the magnetic field

Part A
Although the evidence is weak, there has been
concem in recent years over possible health effects
from the magnetic fields generated by electric
transmission lines. A typical high-voltage
transmission line is 20 m above the ground and
carries a 200 A current at a potential of 110 kV.
What is the magnetic field strength on the ground directly under such a transmission line?
Express your answer with the appropriate units.
LO
LE
HA
?
B-
Value
Units
Submit
Request Answer
Part B
What percentage is this of the earth's magnetic field of 50 4T?
O AED
Bates
Bearth
%

Part A Although the evidence is weak, there has been concem in recent years over possible health effects from the magnetic fields generated by electric transmission lines. A typical high-voltage transmission line is 20 m above the ground and carries a 200 A current at a potential of 110 kV. What is the magnetic field strength on the ground directly under such a transmission line? Express your answer with the appropriate units. LO LE HA ? B- Value Units Submit Request Answer Part B What percentage is this of the earth's magnetic field of 50 4T? O AED Bates Bearth %