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KCET2009PhysicsElectrostatics

The electric potential at any point x, y, z in metres is given by V =3 x ² . The electric field at a point (2,0,1) is

Options

  1. A12 Vm ⁻¹
  2. B-6 Vm ⁻¹
  3. C6 Vm ⁻¹
  4. D-12 Vm ⁻¹

Correct answer

D. -12 Vm ⁻¹

Step-by-step solution

Here, electric potential V=3 x² Electric field, aligned E =- V x &=- x (3 x ² )=-6 x & E _ (2,0,1) =-12 Vm ⁻¹ aligned

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