The electric potential \[V\] is given as a function of distance \[x\] (metre) by \[V=(5{{x}^{2}}+10x-9)\,volt\]. Value of electric field at \[x=1\] is [MP PET 1999]

The electric potential \[V\] is given as a function of distance \[x\]

1.	The electric potential \[V\] is given as a function of distance \[x\] (metre) by \[V=(5{{x}^{2}}+10x-9)\,volt\]. Value of electric field at \[x=1\] is [MP PET 1999]
A.	\[20\,V/m\]
B.	\[6\,V/m\]
C.	0.12569444444444
D.	\[-23\,V/m\]
Answer» B. \[6\,V/m\]

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