Question

A total charge of 40/3 nC is uniformly distributed in the form of a circular disk of radius 2 m. Find the potential due to this charge at a point on the axis, 2 m from the disk. Compare this potential with that which results if all of the charge is at the center of the disk

Answer 1

Answer:

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Explanation:

.........

Answer 2

• The electric potential is defined as the work done per unit charge in order to bring that charge from infinity to a point in the electrostatic field against the field force. Electric Potential is also referred to as Voltage. The SI unit for Electric Potential or Electric Potential difference is Voltage or Volts.
• Electric potential energy is the energy that is needed to move a charge against an electric field. ... It's hard work, because the electric force is pulling them together. If you let the positive particle go, it would snap back to the negative plate, pulled by the electric force.

Explanation:

Given:

$vd = 40/3c$

$E =2m$

$u= vd/E$

$= 40/3/1.7$× $10^-3$

$= 1.01m^2/Vs$

so the potential is due to this charge at a point on the axis, 2 m from the disk is $1.01 m^2/V s$