Electronics - Transformers - Discussion
Discussion Forum : Transformers - General Questions (Q.No. 13)
13.
If the primary power of an ideal transformer having a 2:1 voltage ratio is 100 W, the secondary power is
Discussion:
11 comments Page 1 of 2.
ABHI said:
1 decade ago
100 watts because transformer is ideal there is no any power loss.
(1)
Nikhil Kumar said:
6 years ago
Always power in transformer is constant, if voltage ratio decrease, then current ratio must be increased.
(1)
Yogeshwaran said:
1 decade ago
The voltage ratio will not reflect in power.
Prabhakar said:
1 decade ago
But p=vi and v2/v1=n2/n1
So indirectly power reflects voltage, can you please clear my doubt?
So indirectly power reflects voltage, can you please clear my doubt?
Saritha said:
1 decade ago
Primary power is transmitted to secondary. So same 100w is the answer.
Kutti said:
1 decade ago
Please friends solve this problem properly I could not understand.
Hannan said:
1 decade ago
As written in the question that this is an Ideal Transformer.
The ideal transformer is the one whose efficiency is 100% so output power will be same.
i.e., Efficiency = P2/P1 so if PI is 100W then after 100% efficiency the output power will also be 100W.
So Efficiency = p2/p1 x 100 = 100/100 x 100 = 1 x 100 = 100%.
The ideal transformer is the one whose efficiency is 100% so output power will be same.
i.e., Efficiency = P2/P1 so if PI is 100W then after 100% efficiency the output power will also be 100W.
So Efficiency = p2/p1 x 100 = 100/100 x 100 = 1 x 100 = 100%.
Abhi said:
1 decade ago
We know that, V1I1=V2I2 in a transformer, so its given that primary power is V1I1=100W which is equal to secondary power V2I2.
Anys said:
9 years ago
Does 2:1 has nothing to do with this problem?
Ajinkya said:
9 years ago
Thanks you all for the explanations.
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