Which of the following statements are true regarding eddy current?
(i) Direction of eddy current can be found by Lenz’s law
(ii) Eddy current causes wastage of power
(iii) Eddy current loss can be minimized by using material which have low hysteresis coefficient.
1
Only (i) is true
2
Only (ii) is true
3
Only (i) and (ii) is true
4
All are true