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A loss free transformer has 500 turns on its primary winding and 2500 in secondary. The meters of the secondary indicate 200 volts at 8 amperes under these conditions. The voltage and current in the primary is
  • a)
    100 V, 16 A
  • b)
    40 V, 40 A
  • c)
    160 V, 10 A
  • d)
    80 V, 20 A
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A loss free transformer has 500 turns on its primary winding and 2500 ...
Given data
- Np = 500 turns
- Ns = 2500 turns
- Vs = 200 V
- Is = 8 A

Formula
- Vp/Vs = Np/Ns
- Ip/Is = Ns/Np

Calculations
- Vp/Vs = Np/Ns
- Vp/200 = 500/2500
- Vp = 40 V
- Ip/Is = Ns/Np
- Ip/8 = 2500/500
- Ip = 40 A
Therefore, the voltage and current in the primary winding are 40 V and 40 A respectively, which corresponds to option B.
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A loss free transformer has 500 turns on its primary winding and 2500 in secondary. The meters of the secondary indicate 200 volts at 8 amperes under these conditions. The voltage and current in the primary isa)100 V, 16 Ab)40 V, 40 Ac)160 V, 10 Ad)80 V, 20 ACorrect answer is option 'B'. Can you explain this answer?
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