The electromagnetic torque developed in any physical system, and with magnetic saturation neglected, acts in such a direction as to tend to ____________
A. decrease both the reluctance and inductance
B. increase both the reluctance and inductance
C. decrease the reluctance and increase the inductance
D. increase the reluctance and decrease the inductance
Answer:A
The electromagnetic torque developed in any physical system, and with magnetic saturation neglected, acts in such a direction as to tend to ____________
A. decrease both the reluctance and inductance B. increase both the reluctance and inductance C. decrease the reluctance and increase the inductance D. increase the reluctance and decrease the inductance
Explanation: fe=1/2 ∅2 dRl/dx , Te=-1/2 ∅2 dRl/dθ= 1/2 i2 dL/dθ.