Why all voltage level are multiples of 11, like 220V, 440V, 1100V instead of 200V, 400V, 1000V?

1 Answers   Focus,

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What is meant by energy spectrum of a black body? What do you infer from it? : quantum physics

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I just want to convert the voltage into current i.e. suppose I have 750V & 1A AC power then I want to convert it into 12V & 62A DC power only difficulty is that I don't want to use the tranceformer. Simply to say, I want to make the step-down without using tranceformer. Please, give me some ideas. And also I want the relation between Magnetic Induction & Weight of the body can be levitated. Or I can say, how much of magnetic induction requires to lift 500gms weight? I am heartily thankful to you.

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What are the applications of electron microscope. : quantum physics

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How will you make the clock go fast ?

1 Answers  

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i didnot recieve my group1 hallticket

0 Answers   APPSC,

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How do whales sink or rise at their own will ?

1 Answers  

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I observed this question to be asked in many exams - We cannot move even a finger without disturbing all the stars?Explain it.

1 Answers   Google,

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What is the Cement ?

1 Answers  

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How can you save the sea from oil and sound polution?

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What is periodic wave?

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Describe the main process involved in the manufacture sugar. What is the main bi-product of sugar industry and to what use as put in Bihar ?

1 Answers  

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