Recent content by sach963

With the help of other sources, I now know that 3 9V batteries will do.But I would also like to know approximately how much time will be taken. Can anyone help me?

For a school project, I need to electroplate copper on an iron nail with copper sulphate solution. How much voltage electricity will I need for this experiment?

I am not able to understand electric currents. Can anyone explain?

Why?

it was specified on the side of the plug as output. (it is moulded)

I hope so!

Thank you a lot! I was scared that I will end up blowing up the main fuse of the house when I switch it on.

https://upload.wikimedia.org/wikipedia/commons/thumb/8/8a/European_electrical_contour_plug_%28not_earthed%29.JPG/800px-European_electrical_contour_plug_%28not_earthed%29.JPG{I meant this when I typed plug.}

Does it make any difference if i connect the previously positive wires with negative and vice versa?(these lights are LEDs)

http://data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wCEAAkGBxQSEhUUEhQVFBUXFxgYGBgXFx0dGhocFxsYGh0XGxwYHSggGholHBQYJDEhJSkrLi4uFx8zODMsNygtLisBCgoKDg0OGxAQGywkICQsLCwsLCwsLCwsLCwsLCwsLCwsLCwsLCwsLCwsLCwsLCwsLCwsLCwsLCwsLCwsLCwsLP/AABEIAKkBAAMBEQACEQEDEQH/xAAcAAABBQEBAQAAAAAAAAAAAAAFAAEDBAY...

I have a serial light whose plug is not working. Its output is 2.5A 250v. I have spare plugs of 5A 250v. Is it safe to replace the former with the latter? If not, can you give any other suggestions?

Thank you all for your replies.:bow: This had been breaking my head.:headbang:

Thank you all for your replies.:smile::smile::smile::smile::smile::smile: This question had been breaking my head.:headbang:

So, this means that friction between ground and shoe is forward?

When a person is running is frictional force forward or backward? I do not have good knowledge of