Electrical Engineering - Transformers - Discussion
Discussion Forum : Transformers - General Questions (Q.No. 11)
11.
How many primary volts must be applied to a transformer with a turns ratio of 0.1 to obtain a secondary voltage of 9 V?
Answer: Option
Explanation:
We know that, V2/V1 = N2/N1.
Given V2 = 9v, N2/N1 = 0.1
Therefore, 9v/V1 = 0.1
V1 = 9v/0.1 = 90v.
For more detail: Step Down Transformer - Circuit with Simulation.
Discussion:
24 comments Page 3 of 3.
Suda said:
1 decade ago
Can anybody explain turns ratio is either n2/n1 or n1/n2?
Parashkthi.P.R said:
1 decade ago
E2/E1=N2/N1
N2/N1=0.1
E2=9
E1=9/0.1=90V
N2/N1=0.1
E2=9
E1=9/0.1=90V
Siri said:
1 decade ago
Turns ratio=N2/N1 not N1/N2.
Chandresh Soni said:
1 decade ago
I agree with Parashkthi
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