Electronics and Communication Engineering - Networks Analysis and Synthesis - Discussion
Discussion Forum : Networks Analysis and Synthesis - Section 2 (Q.No. 38)
38.
In an unloaded transformer, the fluxes limiting the primary and secondary are 30 mWb and 20 mWb. The coefficient of coupling is
Answer: Option
Explanation:
Φ11 = (1 - k) Φ1 
φ11 = φ1 - φ2
30 - 20 10 mWb
10 mWb = (1 - k) 30m 0.33 = 1 - k k = 0.67 .
Discussion:
Be the first person to comment on this question !
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers