In MPT, skin effect comes into picture due to Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â current

In MPT, skin effect comes into picture due to Â Â Â Â Â Â�

1.	In MPT, skin effect comes into picture due to Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â current
A.	ac
B.	dc
C.	both a & b
D.	none of the above
Answer» B. dc