Physics, asked by meenavidyameenpaga21, 1 year ago

work done in moving 5 coulomb charges from A to B is 75 joule if potential at a is 25 volt find potential at b

Answers

Answered by tiwaavi
22
Given conditions ⇒

Charge(Q) = 5 C.
Work done in bringing the Charge from Point A to B(W) = 75 J.

Potential at Point A (V₁) = 25 V.
Potential at Point B = V₂. 

Now, Using the Formula, 

V₂ - V₁ = W/Q

⇒ V₂ - 25 = 75/5
V₂ = 15 + 25
V₂ = 40 V.


Hence, the Potential at Point B is 40 V.


Hope it helps.
Answered by JinKazama1
8
Final Answer :  V_{b} = 40 \: V

Steps :
1) We have,
Work done in moving a charge from A to B = 75 J
 V_{a} = 25 \: V
charge, q = 5 C

We know that,
 W_{ext \: A -\ \textgreater \  B } =  q \: ( V_{b} -  V_{a} )  \\<br />                 =\ \textgreater \  75.    =  5 (  V_{b} - 25)   \\<br />                  =\ \textgreater \  15.    =  V_{b} - 25  \\ <br />                  =\ \textgreater \   V_{b}  = 40 <br />\: V


Hence, Potential at point B is 40 V
Similar questions