Electrical Engineering - Transformers - Discussion
Discussion Forum : Transformers - General Questions (Q.No. 10)
10.
A transformer with a 110 V primary has a 15:1 turns ratio. The load resistance, RL, is 120 
. What is the approximate voltage across the load?
. What is the approximate voltage across the load?Discussion:
53 comments Page 3 of 6.
Pawan Choudhury said:
10 years ago
N2/N1 = V2/V1.
As per the question N2 = 1, N1 = 15 and v1 = 110.
Putting this in above formula. We can get the value of v2. i.e. 7.3 v.
Have a nice day!
As per the question N2 = 1, N1 = 15 and v1 = 110.
Putting this in above formula. We can get the value of v2. i.e. 7.3 v.
Have a nice day!
Gopi said:
1 decade ago
Turns ratio K=N2/N1
Use this formula V2/V1=N2/N1
V2/110=1/15
So V2=110/15
V2=7.3
Use this formula V2/V1=N2/N1
V2/110=1/15
So V2=110/15
V2=7.3
Wasim iqbal said:
9 years ago
Ns : Np = 15 : 1.
So, Ns = 1 ; Np = 15.
Vp = 110.
Here the relation is Ns / Np = Vs / Vp.
Substituting the values, we get:
Vs = 7.3V.
So, Ns = 1 ; Np = 15.
Vp = 110.
Here the relation is Ns / Np = Vs / Vp.
Substituting the values, we get:
Vs = 7.3V.
Guna said:
7 years ago
In the transformer,
The Turns ratio means N1/N2.
And transformation ratio Means = N2/N1 = k.
So, that N1/N2 = 1/15.
The Turns ratio means N1/N2.
And transformation ratio Means = N2/N1 = k.
So, that N1/N2 = 1/15.
(3)
Vineet said:
1 decade ago
I am confused in some questions they are taking turn ratio to be N2/N1 while in others they are taking it N1/N2.
Sumukh said:
1 decade ago
Is it necessary to consider the turns ratio primary as to secondary or secondary as to primary? Please explain.
Suchit said:
1 decade ago
How can we know that the given turn ratio is N2/N1 or N1/N2. Why you take N1/N2 as turn ratio in this problem?
Ali said:
1 decade ago
N1=15,N2=1,V1=110
If we use N1/N2=V1/V2
and if We use N2/N1=V2/V1
In both cases answer is same
please relax.
If we use N1/N2=V1/V2
and if We use N2/N1=V2/V1
In both cases answer is same
please relax.
Anil Kumar said:
1 decade ago
In the problem they always give turns ratio as N1:N2. But we have to apply accordingly as per the formula.
Duryodhan kumar mandal said:
1 decade ago
N1/N2 = V1/V2.
Than putting value,
15:1 = 110:v2.
=> v2 = 110*1/15.
=> v2 = 7.33v.
Than putting value,
15:1 = 110:v2.
=> v2 = 110*1/15.
=> v2 = 7.33v.
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