Two points, A and B, are separated by 0.0158 m. The potential at A is +81.8 V, and that at B is +40.1 V. Find the magnitude of the constant electric field between the points.

2639.24 V/m

Explanation:

Electric field = potential difference between point A and B ÷ distance apart

Potential at A = 81.8 V

Potential at B = 40.1 V

Potential difference between A and B = 81.8 - 40.1 = 40.7 V

Distance apart = 0.0158 m

Electric field = 40.7 V ÷ 0.0158 m = 2639.24 V/m

in simple terms, the principle states that the buoyancy force on an object is equal to the weight of the fluid displaced by the object, or the density of the fluid multiplied by the submerged volume times the gravitational acceleration, g. this is also known as upthrust.