Constants 1 Perlodic Table Part A A simple electric motor consists of a 220-tum
ID: 778770 • Letter: C
Question
Constants 1 Perlodic Table Part A A simple electric motor consists of a 220-tum coil, 4.5 cm in diameter, mounted between the poles of a magnet that produces a 98-mT field When a 15-A current flows in the coil, what is the ooil's magnetic dipole moment? Express your answer with the appropriate units . 15.245 Am " | Submit Previous Answers Request Answer incorrect; Try Again; 2 attompts remaining Part B When a 15-A current flows in the coil, what is the motor's maximum torque? Express your answer with the appropriate units. 0? aAxValue Units Submit Request AnswerExplanation / Answer
part A)
magnetic dipole moment = N * Area * I
magnetic dipole moment = 15 * pi * (0.045/2)^2 * 220
magnetic dipole moment = 5.25 A.m^2
part B)
motor's maximum torque = B * dipole moment
motor's maximum torque = 0.098 * 5.25
motor's maximum torque = 0.515 N.m
the motor's maximum torque is 0.515 N.m