Electrical Engineering - Transformers - Discussion
Discussion Forum : Transformers - General Questions (Q.No. 3)
3.
When the turns ratio of a transformer is 20 and the primary ac voltage is 12 V, the secondary voltage is
Discussion:
69 comments Page 4 of 7.
Jyoti said:
9 years ago
Ans.is 0.6.
Because Turns ratio for the transformer is N1/N2.And It's already given in data.
Now, when we calculate the secondary voltage by transformation ratio. Then it will become
N2/N1 = V2/V1,
1/20 = V2/12,
V2 = 12/20,
V2 = 0.6 volts.
According to me, the options are wrong.
Because Turns ratio for the transformer is N1/N2.And It's already given in data.
Now, when we calculate the secondary voltage by transformation ratio. Then it will become
N2/N1 = V2/V1,
1/20 = V2/12,
V2 = 12/20,
V2 = 0.6 volts.
According to me, the options are wrong.
Abhishek Chandra Jha said:
9 years ago
Answer is 0.6. The turns ratio is N1/N2 not N2/N1.
Sam said:
9 years ago
K=N2/N1= V2/V1 no of turns ratio is 20, primary voltage 12 due to which V2 = 20x12 = 240 Volt.
P.RAJESH said:
8 years ago
How to identify sum in take primary turn or a Secondary turn? digit.
Sai said:
8 years ago
You are correct @Veena. I agree with you.
Nikhilesh said:
1 decade ago
v2/v1 = n2/n1 = i1/i2 = k (this is standard ratio)
n2/n1 = 20 (given)
20=v2/v1
v2=20*12
=240
n2/n1 = 20 (given)
20=v2/v1
v2=20*12
=240
Gayathri.k said:
1 decade ago
12*20=240v
secondary voltage = number of turns ratio * voltage in primary
secondary voltage = 12*20
secondary voltage = 240 volts
secondary voltage = number of turns ratio * voltage in primary
secondary voltage = 12*20
secondary voltage = 240 volts
Suvankar said:
1 decade ago
Guys, I m confused.
The turns ratio of a transformer is T1/T2=20
Primary turns to the secondary turns is called the turns ratio.
i.e. and E1/E2=T1/T2 [Refer Ashfaq Hussian, Electric machines, page no 3]
The ans should be, E2=E1/20
i.e. E2= 12/20=0.6
Isnt it??
The turns ratio of a transformer is T1/T2=20
Primary turns to the secondary turns is called the turns ratio.
i.e. and E1/E2=T1/T2 [Refer Ashfaq Hussian, Electric machines, page no 3]
The ans should be, E2=E1/20
i.e. E2= 12/20=0.6
Isnt it??
Sundar said:
1 decade ago
Turns ratio (N2/N1) = 20 [or] N2/N1 = 20/1
N2 = 20
N1 = 1
V1 = 12V
V2 = ?
Formula: V1/V2 = N1/N2 [or] V2/V1 = N2/N1
Therefore, V2 = V1. (N2/N1)
V2 = 12 x (20) = 240v.
N2 = 20
N1 = 1
V1 = 12V
V2 = ?
Formula: V1/V2 = N1/N2 [or] V2/V1 = N2/N1
Therefore, V2 = V1. (N2/N1)
V2 = 12 x (20) = 240v.
Rupambika said:
1 decade ago
Given data
turn ratio k=20
primary voltage v1=12v.
according to the formula
v2/v1= k
=> v2/12v= 20
=> v2= 20*12v
=240v
hence the secondary current is 240v.
AM I RIGHT?
turn ratio k=20
primary voltage v1=12v.
according to the formula
v2/v1= k
=> v2/12v= 20
=> v2= 20*12v
=240v
hence the secondary current is 240v.
AM I RIGHT?
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