Electronics - Transformers - Discussion
Discussion Forum : Transformers - General Questions (Q.No. 5)
5.
What is the turns ratio of the transformer needed to match a 1 k
source resistance to a 160 load?
source resistance to a 160 load?Discussion:
30 comments Page 3 of 3.
Naga Jyothi said:
1 decade ago
sir..........
(N1/N2)^2=R1/R2
ABOVE ANSWER IS CORRECT SIR....
N1/N2=2.5:1
(N1/N2)^2=R1/R2
ABOVE ANSWER IS CORRECT SIR....
N1/N2=2.5:1
Jagadeesh said:
1 decade ago
Z1/Z2=(N1/N2)^2
(1000/160)=(N1/N2)
^2
N1/N2=2.5:1
is the correct answer
(1000/160)=(N1/N2)
^2
N1/N2=2.5:1
is the correct answer
Sukumar said:
1 decade ago
I think right option is A because we know that direct formulae rp/rs=(Np/Ns)^2
rp=1000;
rs=160;
(Np/Ns)^2=(1000/160)--->6.25/1;
then Np/Ns=2.5:1
rp=1000;
rs=160;
(Np/Ns)^2=(1000/160)--->6.25/1;
then Np/Ns=2.5:1
Guest said:
1 decade ago
Therefore Is*1000=Ip*160 and Ip/Is=k=N1/N2
k=1000/160=6.25:1
k=1000/160=6.25:1
R&J said:
1 decade ago
Answer is c because IpRp=IsRs
therefore Is*1000=Ip*160 and Ip/Is=k=N1/N2
k=1000/160=6.25:1
therefore Is*1000=Ip*160 and Ip/Is=k=N1/N2
k=1000/160=6.25:1
Arudra laxmi said:
1 decade ago
Saritha I think your answer is wrong once you calculate again.
Saritha said:
1 decade ago
r2=160,r1=1000
k=(160/1000)^0.5
k=0.4
k=(160/1000)^0.5
k=0.4
Sachi said:
1 decade ago
Elaborate the theory in it please.
LAVISHA said:
1 decade ago
Option c because N IS INVERSELY PROPOTIONAL TO THE RESISTSNCE.
Billa said:
1 decade ago
Please explain.
Post your comments here:
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers