A 50 Hz a.c. current of crest value 1 A flows through the primary of a transformer. If the mutual inductance between the primary and secondary be 1.5 H, the crest voltage induced in the secondary is
see full answer
Your Exam Success, Personally Taken Care Of
1:1 expert mentors customize learning to your strength and weaknesses – so you score higher in school , IIT JEE and NEET entrance exams.
An Intiative by Sri Chaitanya
a
75 V
b
150 V
c
225 V
d
300 V
answer is D.
(Unlock A.I Detailed Solution for FREE)
Best Courses for You
JEE
NEET
Foundation JEE
Foundation NEET
CBSE
Detailed Solution
The current changes from 1 amp to - 1 amp. Hencedi = 1-(-1) = 2amp.dt = (1/ 100)s and M = 1.5H∴e=Mdidt=1⋅5×2(1/100)= 7.5 x 2 x 100 = 300 V