## What is the electric potential at the point indicated with the dot in the figure?

### Question:

What is the electric potential at the point indicated with the dot in the figure?

### Answer and Explanation:

Electric Potential:

The electric potential at a point that is rr away from a solitary charge Q is given by

V = kQ/r

where k=1/4πϵ0 ≈ 8.99×109 Nm2/C2 alluded to as the Coulomb’s consistent.

For numerous charges, the net electric potential at the fact is the scalar aggregate of the potential because of each charge.

Answer and Explanation:

To begin with, we decide r:

r= (3.0 cm/2) cos30∘=1.299 cm=1.299×10−2 m

At that point we let

• Q1=1.0 nC

• Q2=Q3=−2.0 nC

Review that the electric potential at a point because of a point charge is given by

V=kQr

where

• k=8.99×109 Nm2/C2 is the estimation of Coulomb’s consistent

• Q is the charge

• r is the separation of the charge from the point

Henceforth, the net electric potential at the point for this situation is the total of the possibilities because of each charge:

Vnet = V1 + V2 + V3

=kQ1/r+kQ2/r+kQ3/r

=kr[Q1 + Q2 + Q3]

=8.99×109 Nm2/C2/1.299×10−2 m + x [1.0 nC − 2.0 nC − 2.0 nC]

= −2076.2 V

## Answers ( 2 )

Answer Above.

please consider the figure above