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.

2175

Why does a glass filled with water shatter when you run your finger along the rim of the glass?

972

What do you mean by diffraction and what is/are the proper condition/conditions for it?

1044

Explain the balanced field takeoff?

895

In which medium does the sound travel fatest?

955

Explain what is the measure of the force of gravity on an object?

902

what is the difference between cdma and gsm

2160

how many neutrons and how many protons are present in a single deuterium nucleus?

1011

assuming friction is negligible, if a lever has a mechanical advantage of 5, how much effort in newtons is needed to lift a 10 newton load?

901

If the distance separating two charges is doubled, the force between them decreases by what multiple factor?

989

The throbbing caused by sounds of slightly different frequencies that results because of periodic constructive and destructive interference is called:

1030

So quantum physics must use probability theory? : quantum physics

895

Name the element which has the simplest absorption spectrum?

912

What large machine, which came on line in the summer of 2000 at the department of energys brookhaven national lab, is the world's highest energy ion collider:

905

How we are getting light from electrical bulb?

974