Question

The potential at a point 0.1m apart from an isolated charge is +100V The nature of the point is
Positive or Negative or Zero....Explain Please

Answer 1

The nature of the point ?

V = potential at a point d distance away from a charge Q
           =  1/(4πε)  * Q / d²

=>    100 Volts = 9 * 10^9  * Q /0.1²
       =>  Q = 1.11 * 10⁻¹⁰  coulombs
 
As the potenial is positive.  the given charge is positive.    At the point P 0.1 m away from the isolated charge, the nature is :  positive. 

Answer 2

The nature of the point ?

V = potential at a point d distance away from a charge Q

           =  1/(4πε)  * Q / d²

=>    100 Volts = 9 * 10^9  * Q /0.1²

       =>  Q = 1.11 * 10⁻¹⁰  coulombs

 

As the potenial is positive.  the given charge is positive.    At the point P 0.1 m away from the isolated charge, the nature is :  positive. 

Okkk mark my answer brainlist