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A step-up transformer works on `220 V` and gives `2 A` to an external resistor. The turn ratio between the primary and secondary coils is 2 : 25. Assuming 100% efficiency, find the secondary voltage, primary current and power delivered respectivelyA. `2750 V, 25 A, 5500 W`B. `2750 V, 20 A, 5000 W`C. `2570 V, 25 A, 550 W`D. `2750 V, 20 A, 55 W` |
Answer» Correct Answer - 1 `(E_(s))/(E_(P)) = (N_(s))/(N_(p)) = (i_(p))/(i_(s)), P = E_(s) i_(s)` |
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