CURRENT AFFAIRS

2023

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
As a proton moves in the same direction as the electric field lines ____
A
it is moving from low potential to high potential and gaining electric potential energy.
B
it is moving from low potential to high potential and losing electric potential energy.
C
it is moving from high potential to low potential and gaining electric potential energy.
D
it is moving from an area of high potential to low potential and losing electric potential energy.
Explanation: 

Detailed explanation-1: -So what will be the nature of the potential energy change in this case? So we can say that the that the proton is moving from a point of high potential energy to a low point of low potential energy and thereby losing electric potential energy as a whole.

Detailed explanation-2: -Since no other forces are exerted on the proton, the proton’s kinetic energy must increase. Because the potential energy of the proton decreases, the proton is moving in the same direction as the electric force, and the electric force does positive work on the proton to increase its kinetic energy.

Detailed explanation-3: -The electric force acts on the positive charge in the direction of the electric field, therefore, the proton (positive charge) moves from high electric potential to low electric potential.

Detailed explanation-4: -Answer and Explanation: The proton has moved into an area of higher potential. We know this because the kinetic energy of the proton has been converted into electric potential energy, which means that proton must have moved to an area of higher potential.

There is 1 question to complete.