Electronics - Transformers - Discussion
Discussion Forum : Transformers - Filling the Blanks (Q.No. 2)
2.
The reflected resistance is ___ as seen by the source in the given circu.
150 
300
600
2.4 k
Discussion:
3 comments Page 1 of 1.
Abush said:
7 years ago
n1=4 and n2=1, So by using the formula we can find simply the ratio.
2/n1=1/4=0.25.
we know that r1 = r2/k^2 = 150/0.25^2 = 2.4 Ω.
2/n1=1/4=0.25.
we know that r1 = r2/k^2 = 150/0.25^2 = 2.4 Ω.
B.reddy said:
1 decade ago
By using below formula
In transformer secondary resistance is converted into primary resistance
R(P)=R(S)*(a^2)
a=(N1/N2)^2
R(Primary)=150*(4^2)=2400=2.4 ohms.
In transformer secondary resistance is converted into primary resistance
R(P)=R(S)*(a^2)
a=(N1/N2)^2
R(Primary)=150*(4^2)=2400=2.4 ohms.
Vandana said:
1 decade ago
Please help me to solve this question.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers