Four equal charges, , are situated at the corners of a square as shown in the above diagram. What is the net force (in Newtons) on the test charge at the center?
Let and the permitivity of free space
Two charges Q=+1 mC are placed along the x-axis at x=-2 meters and x=2 meters. The charges are fixed in space. A third charge, which is free to move and has charge q=-0.1 mC and mass m=1g, is placed along the y-axis at y=0.01 meters and released. How long does it take in seconds for the charge to come back to y=0.01?
Details and assumptions
If the magnitude of the electric field a distance above the midpoint between two equal charges, , a distance apart can be expressed as where and are coprime positive integers, what is the value of
Let and the permitivity of free space
A test charge is placed by a single point charge which is at rest at a distance of away. If the force can be expressed as where and are coprime positive integers, what is the value of
Let and the permitivity of free space
If the magnitude of the electric field at a distance of from the point charge can be expressed as where and are coprime positive integers, what is the value of
Let and the permitivity of free space