Question

Two charges luc and 2uc are placed respectively at the corners A and B
of an equilateral triangle ABC of side 10cm. Calculate the electric
potential at C due to these charges. [Given, Eo=8.85 x 10-12 fm'] ​

Answer 1

Answer:

Step-by-step explanation:

The force on C due to A,

F  

CA

​  

=  

0.1  

2

 

9×10  

9

×2×1

​  

 

         =1.8N

The force on C due to B F  

CB

​  

=1.8N

Doing vectorial addition of the forces using,

c  

2

=a  

2

+b  

2

+2abcosθ=1.8  

2

+1.8  

2

+2×1.8  

2

×cos(120)=1.8  

2

 

Net force is thus F=1.8 N.