Electromagnetic force and/or torque developed in any physical system, acts in such a direction as to tend to ____________
A. increase both the field energy and co-energy at constant current
B. increase the field energy and decrease the co-energy at constant current
C. decrease both the field energy and co-energy at constant current
D. decrease the field energy and increase the co-energy at constant current
Answer:A
Electromagnetic force and/or torque developed in any physical system, acts in such a direction as to tend to ____________
A. increase both the field energy and co-energy at constant current B. increase the field energy and decrease the co-energy at constant current C. decrease both the field energy and co-energy at constant current D. decrease the field energy and increase the co-energy at constant current
Explanation: fe= (∂Wfld1(i,x))/∂x=(∂Wfld(i,x))/∂x. 11. The developed electromagnetic force and/or torque in electromechanical energy conversion system, acts in such a direction that tends to ___________