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The electric field in a region is given by  , where E is in NC−1 and x is in metres.  The values of constants are A = 20 SI unit and B = 10 SI unit. 

If the potential at x = 1 is V1 and that at x = − 5 is V2, then V1 − V2 is  

(a)

180 V

(b)

 −520 V

(c)

320 V

(d)

 −48 V


Question ID - 51173 | Toppr Answer

The electric field in a region is given by  , where E is in NC−1 and x is in metres.  The values of constants are A = 20 SI unit and B = 10 SI unit. 

If the potential at x = 1 is V1 and that at x = − 5 is V2, then V1 − V2 is  

(a)

180 V

(b)

 −520 V

(c)

320 V

(d)

 −48 V

1 Answer - 5876 Votes

3537

Answer Key : (a) -

dV =  =  −(Ax + B)dx

v1 − v2 =

             =

             = 12A − 6B

             = 240 − 60

             = 180 V



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