Assum that an electric field vecE = 30 x^(2) hati exists in space. Then the potential difference V_(A) - V_(0), where V_(0) the potential at the origin and V_(A) the potential at x = 2 m is :

Assum that an electric field vecE = 30 x^(2) hati exists in space. The

1.	Assum that an electric field vecE = 30 x^(2) hati exists in space. Then the potential difference V_(A) - V_(0), where V_(0) the potential at the origin and V_(A) the potential at x = 2 m is :
Answer» `-80 ` J 80 J 120 J `-120` J Solution :dV = `-VECE . vecdV` `:. Int_(V_(0))^(V_(A))dV = - int_(0)^(2) 30 X^(2) dx ` `=-[(30x^(3))/(3)]_(0)^(2)=-[(30xx8)/(3)]` `:. V_(A)-V_(0)=- 80 ` `:. V_(A)-0 =-80 J` `:. V_(A)=- 80 J`

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Assum that an electric field vecE = 30 x^(2) hati exists in space. Then the potential difference V_(A) - V_(0), where V_(0) the potential at the origin and V_(A) the potential at x = 2 m is :

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