Turns ratio of a step up transformer is 50. If 220 V A.C. is applied to its primary coil, voltage in the secondary coil will be:
Correct answer: D. 11000V
- A. 44V
- B. 220V
- C. 4.4V
- D. 11000V
Explanation
In a transformer, the voltage ratio between the secondary and primary coils is equal to the turns ratio. For a step-up transformer, the formula is Vs = Vp × (Ns/Np), where Vs is the secondary voltage, Vp is the primary voltage, Ns is the number of turns in the secondary coil, and Np is the number of turns in the primary coil. Given that the turns ratio Ns/Np is 50, and Vp is 220 V, the secondary voltage Vs will be 220 V × 50 = 11000 V. Therefore, the correct answer is 11000V. Other options incorrectly calculate or misunderstand the effect of the turns ratio.
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