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 3 of 7.
Mahesh Bende said:
1 decade ago
V1/V2 = N1/N2.
Turns ratio=20 i.e. N2/N1 = 20.
Primary voltage = 12 Volt.
So, Secondary voltage V2 = V1*N2/N1.
= 12*20.
= 240 Volt.
Turns ratio=20 i.e. N2/N1 = 20.
Primary voltage = 12 Volt.
So, Secondary voltage V2 = V1*N2/N1.
= 12*20.
= 240 Volt.
Dkp said:
9 years ago
Turns ratio a = v1/v2 = e1/e2 = t1/t2.
where a = 20, v1 = 12.
Substitute the value
20 = 12/v2.
Then, v2 = 12/20 = 0.6v => Answer.
where a = 20, v1 = 12.
Substitute the value
20 = 12/v2.
Then, v2 = 12/20 = 0.6v => Answer.
Jatin said:
1 decade ago
Yes 0.6 is the right answer because we must follow the transformation rule. That is n1/n2=v1/v2=i2/i1=k.
Than 240 is wrong answer.
Than 240 is wrong answer.
Ravi chandra said:
1 decade ago
n2/n1 = v2/v1.
So n2/n1 is given = 20.
Primary voltage is given = 12v.
Here,
n2/n1 = v2/v1.
20 = v2/12.
v2 = 20*12.
v2 = 240.
So n2/n1 is given = 20.
Primary voltage is given = 12v.
Here,
n2/n1 = v2/v1.
20 = v2/12.
v2 = 20*12.
v2 = 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
Anand said:
1 decade ago
n2/n1 = v2/v1.
So n2/n1 is given = 20.
Primary voltage is given = 12v.
Here,
n2/n1 = v2/v1.
20 = v2/12.
v2 = 20*12.
v2 = 240.
So n2/n1 is given = 20.
Primary voltage is given = 12v.
Here,
n2/n1 = v2/v1.
20 = v2/12.
v2 = 20*12.
v2 = 240.
Naresh kumaar said:
1 decade ago
Here we have given turn ratio k=n2/n1=20.
primary voltage v1=12v.
secondary voltage v2=?
v2/v1=n2/n1
v2=(n2/n1)v1
v2=20*12=240v
primary voltage v1=12v.
secondary voltage v2=?
v2/v1=n2/n1
v2=(n2/n1)v1
v2=20*12=240v
Prasenjit patra said:
10 years ago
V2/V1 = K;
So V2/12 = 20 then V2 = 240 (answer) where v2 is secondary voltage, v1 is primary voltage, k is transformer ratio.
So V2/12 = 20 then V2 = 240 (answer) where v2 is secondary voltage, v1 is primary voltage, k is transformer ratio.
Lauren said:
1 decade ago
On my research:
Turn Ratio = Vpri/Vsec = Npri/Nsec.
Transformation Ratio = Vsec/Vpri.
Please verify the formula.
Turn Ratio = Vpri/Vsec = Npri/Nsec.
Transformation Ratio = Vsec/Vpri.
Please verify the formula.
Uma.M said:
1 decade ago
We know that k = v2/v1.
Here v1 = primary voltage = 12.
Turns ratio k = 20.
So 20 = v2/12 i.e., v2 = 240v.
Here v1 = primary voltage = 12.
Turns ratio k = 20.
So 20 = v2/12 i.e., v2 = 240v.
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