For the use of electric lamp of low voltage on A.C. mains of higher voltage, which of the following device is used

Options :
  1. transistor
  2. resistor
  3. capacitor
  4. transformer
Answer and Explanation :-

Answer: Option 4

Explanation:

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Oh, come with old Khayyàm, and leave the Wise To talk one thing is certain, that Life flies One thing is certain, and the Rest is Lies The Flower that once has blown forever dies.
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