The maximum load that a power transformer can carry is limited by its

A. Voltage ratio
B. Dielectric strength of the coil
C. Copper loss
D. Temperature rise

Answer: A

Explanation:
  • One can increase the dielectric strength of oil, by changing the oil. 
  • Similarly, temperature rise and copper losses can also be controlled by using various techniques. 
  • The only thing which is constant is voltage ratio which can’t be altered.
  • Voltage transformation ratio is equal to secondary induced emf to the primary induced emf. 
  • While the secondary and primary voltage induced are different from emfs as these are emf minus the losses in the line.

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