What is an (electrostatically) induced charge?
When an electrically charged object (e.g rod) charges an uncharged object (e.g. metal sphere) that is nearby with the opposite charge.
How does this happen?
The charged rod causes the charges on the sphere to be redistributed.
For instance, if the rod is positively charged and is brought near a point A on the surface of a sphere, a negative charge will accumulate at point A inside the sphere. This occurs because electrons inside the sphere are attracted to the rod and are free to move across electrically conducting objects.
*Important to note that the total charge of the sphere does not change.
HT
Related Physics GCSE answers
All answers ▸A train is travelling at 50m/s. How long does it take the train to reach 60m/s if it accelerates at a constant rate of 0.5m/s^2? How many kilometres does it travel in this time?
A car driver has to make an emergency stop. The braking distance depends on the speed of the car. For the same braking force, what happens to the braking distance if the speed doubles?
Why is the car moving if the unbalanced force is zero?
Can you please explain the basics of electricity? I can do the maths but I don't understand what 'voltage', 'current' or 'resistance' actually is!