Is the left hand side there positive or negative? What about the right hand side?Clara Chung said:mv^2/r = -ke^2/r^2
LHS is positive and RHS is negative? They should both be positive as the negative sign represents the direction?I don't get itharuspex said:Is the left hand side there positive or negative? What about the right hand side?
So the right hand side must be wrong. Try explaining in detail how you arrive at the minus sign there.Clara Chung said:LHS is positive and RHS is negative? I don't get it
Thanks for helping me. But why the minus sign in potential energy need not to consider?haruspex said:So the right hand side must be wrong. Try explaining in detail how you arrive at the minus sign there.
That is not an energy expression, it's a force expression.Clara Chung said:Thanks for helping me. But why the minus sign in potential energy need not to consider?
Electrical potential energy is the energy that an object possesses due to its position in an electric field. It is a type of potential energy that is stored within an electrically charged object.
The formula for calculating electrical potential energy is: PE = qV, where PE is the potential energy, q is the charge of the object, and V is the electric potential. The unit for electrical potential energy is joules (J).
The amount of electrical potential energy is affected by the magnitude of the electric charge, the distance between the charged objects, and the strength of the electric field.
Yes, electrical potential energy can be converted into other forms of energy such as kinetic energy or thermal energy. For example, when a charged object moves through an electric field, its potential energy is converted into kinetic energy.
Electrical potential energy is the energy stored within an electrically charged object, while electric potential is the potential energy per unit charge at a given point in an electric field. In other words, electric potential is a measure of how much potential energy an object has per unit charge.