he rubbed amber and it could pick up pieces of sticks, fur, wool or straw!
just by rubbing an object e.g: rubbing hands, rubbing stones, to create a charge
No. To get induced charge separation you must have electrons in outer bands that can easily be moved by an electric field. Conductors have these electrons available but insulators do not.
Yes, electric current does create magnetic fields
Moving electric charges create electromagnetic fields.
If we place a charged body to a position it feel a force which depends the presence of other charged body around it. Now we can say something was there in that position before placing that charged body. Here arise a concept of electric field.Electric field is defined as the electric force per unit charge. The direction of the field is taken to be the direction of the force it would exert on a positive test charge. The electric field is radially outward from a positive charge and radially in toward a negative point charge. A simple isolated electron in an earth can create an electric field in the moon eventhough its negligible.
Yes. A spinning charge will create a magnetic field as will a moving charge.
just by rubbing an object e.g: rubbing hands, rubbing stones, to create a charge
Opposites attract, like charges repel each other.
-- Electric charge that's moving is the definition of electric current.-- It creates a magnetic field in its neighborhood.
You plug them in and charge then like a cell phone, Their trying to create charging stations like gas stations but for electric car(:
The presence of charge creates an electric field. The electric field is just a convenient quantity of how much another charge would move *if* it were placed near the first charge.
Actually, they need a difference in energy per charge. Voltage is energy per charge, in joules per coulomb, and a voltage differential is what is required to create an electric current flow.
Yes. As a matter of fact, a common electronic component called a capacitor works because of this very principle.
No. To get induced charge separation you must have electrons in outer bands that can easily be moved by an electric field. Conductors have these electrons available but insulators do not.
Thales discovered static electricity accidently in 585 BC when he rubbed by chance fur and amber and observed that with it he could attract very light weighted objects like feathers etc.
A picture tube is an insulator. The electrons would gather up and so, create an electric charge when the TV is on. If it was a conductor, the charge would not build up. Hope this helps :)
Yes, electric current does create magnetic fields