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KCET2007PhysicsElectrostatics

The potential of the electric field produced by point charge at any point (x, y, z) is given by V=3 x²+5 , where x, y are in metres and V is in volts. The intensity of the electric field at (-2,1,0) is

Options

  1. A+17 Vm ⁻¹
  2. B-17 Vm ⁻¹
  3. C+12 Vm ⁻¹
  4. D-12 Vm ⁻¹

Correct answer

D. -12 Vm ⁻¹

Step-by-step solution

Potential (V)=3 x²+5 Intensity of the electric field = d V d x =6 x aligned E at x &=-2 &=6(-2)=-12 ~V / m aligned

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