Question

The plane of the circular current carrying loop having radius 1.52 cm and mass 2.5 g is
making an angle of 25° with the uniform magnetic field having a magnitude of
4.6x10- T: The current passing through the loop is 3.4 A. Calculate the magnitude of the
angular acceleration of the circular loop.​

Answer 1

Answer:

How much current is needed to produce a significant magnetic field, perhaps as strong as the Earth’s field? Surveyors will tell you that overhead electric power lines create magnetic fields that interfere with their compass readings. Indeed, when Oersted discovered in 1820 that a current in a wire affected a compass needle, he was not dealing with extremely large currents. How does the shape of wires carrying current affect the shape of the magnetic field created? We noted earlier that a current loop created a magnetic field similar to that of a bar magnet, but what about a straight wire or a toroid (doughnut)? How is the direction of a current-created field related to the direction of the current? Answers to these questions are explored in this section, together with a brief discussion of the law governing the fields created by currents.