Electrostatics questions | form five Physics

An electron is situated in a uniform electric field of field strength of 1.2×10​Vm^-1​ . Find
the force acting on it and its acceleration if it has travelled 20mm from rest.

Answer / Solution

UNSOLVED

Define the terms electric potential and electric potential and electric field-strength E at a point in hte electrostatic field.

Answer / Solution

UNSOLVED

How electric potential and electric field-strength E are related?.

Answer / Solution

UNSOLVED

Outside the sphere, a charged sphere behaves like its charges were concentrated at the centre. If the electric field strength inside the sphere is zero and one sphere of radius 5.0cm carries a positive charge of 6.7nC, calculate;

1. The potential at the surface of the sphere.
2. The capacitance of the sphere.

Answer / Solution

UNSOLVED

Figure 1 shows two horizontal parallel conducting plates in a vacuum.

If a small particle of mass 4x10^-12Kg carries a positive charge of 3.0x10^-14 C is released at point A close to the upper plate.

1. What is the total force on this particle?
2. Calculate the kinetic energy of the particle when it reaches the lower plate.

Answer / Solution

UNSOLVED