Which of the following distinguishes how a lubrication system prevents significant damage to a tractor? it stops the crankcase from leaking

it prevents the spark plug from misfiring

it keeps the head gasket from tearing

it keeps the engine from seizing

The magnitude of the magnetic field at a certain distance from a long, straight conductor is represented by b. what is the magnitude of the magnetic field at twice the distance from the conductor? a. at twice the distance, the magnitude of the field is 4b.b. at twice the distance, the magnitude of the field is 2b.c. at twice the distance, the magnitude of the field is b/2.d. at twice the distance, the magnitude of the field is b/4.e. at twice the distance, the magnitude of the field remains equal to b.