Question
Download Solution PDFWhich of the following option is correct regarding transformer?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCONCEPT:
- A Transformer is used to convert low voltage (or high current) to high voltage (or low current) and high voltage to low voltage.
EXPLANATION:
- A Transformer is used to convert low voltage to high voltage and vice versa.
- This is done by changing the number of turns in primary and secondary coils.
In a transformer, the voltage in the secondary coil (load coil) is calculated by:
\(\frac{N_{s}}{N_{p}}=\frac{V_{s}}{V_{p}}\)
Here,Np and Ns are the numbers of turns in the primary and the secondary coils respectively and Vp and Vs are the rms voltages across the primary and secondary respectively.
- Transformers do not change AC current to DC current or vice versa.
- So the correct answer is option 2.
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