If the distance separating two charges is doubled, the force between them decreases by what multiple factor?
Is a sewing needle magnetic or non magnetic?
Physics short answer to two significant figures, what is the index of refraction of air?
Tell me what path does an asteroid take?
pressure is greater at the time of walking or standing when ?
Explain one advantage of a scanning electron microscope over a transmission electron microscope?
What forces support an airplane in flight?
Explain why are metals able to conduct current so well?
What is the ray of light?
Explain heat treatment. Why and how is it done?
What is meant by degenerate and non-degenerate state? Give examples. : quantum physics
Explain the Mass and Weight ?
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.