The force produced by electric field in a singly excited energy conversion device, using electric field as coupling medium can be obtained by ___________
A. use of field energy function only
B. use of coenergy function only
C. any of the mentioned
D. none of the mentioned
Answer:A
The force produced by electric field in a singly excited energy conversion device, using electric field as coupling medium can be obtained by ___________
A. use of field energy function only B. use of coenergy function only C. any of the mentioned D. none of the mentioned
Explanation: fe = -∂Wfld(q,x)/∂x