What is the current measured by ammeter 4?

In a load, the load is paralel to the shaft. n a. angular n b. thrust n c radial n d. none of the above

If the ama of the inclined plane below is 2, calculate the ima and efficiency. ima = efficiency =

I'm thinking it's 2 you are asked to explain the earth's magnetic field. which is the best reply? 1. the earth's magnetic south is similar to the north pole of a magnet. 2. the earth's core has a strong magnetic charge similar to the south pole of a magnet. 3. the earth's geomagnetic south is similar to the south pole of a magnet. 4. the earth's magnetic charge is not centered at either pole; it varies based on location.