When a current of 5A flows through a coil of linear magnetic circuit, it has flux linkages of 2.4 wb-turns. What is the energy stored in the magnetic field of this coil in Joules?
A. 6
B. 12
C. 1.2
D. 2.4
Answer:A
When a current of 5A flows through a coil of linear magnetic circuit, it has flux linkages of 2.4 wb-turns. What is the energy stored in the magnetic field of this coil in Joules?
A. 6 B. 12 C. 1.2 D. 2.4
Explanation: Wfld=1/2 φ*i= 1/2*2.4*5=6 Joules.