Which of given is not the unit of electric intensity
Correct answer: B. NV-1
- A. NC-1
- B. NV-1
- C. Vm-1
- D. None of these
Explanation
The correct answer is Option B: NV-1. Electric intensity, also known as electric field strength, is measured in units of Newtons per Coulomb (N/C) or Volts per meter (V/m). These units align with the definitions of force per unit charge and potential difference per unit distance, respectively. Option A, NC-1, and Option C, Vm-1, are both standard units for electric intensity. However, Option B, NV-1, does not conform to any recognized unit for electric intensity, as it incorrectly combines force and potential units without representing a meaningful physical quantity. Therefore, Option D, None of these, is also incorrect because there is indeed an incorrect unit listed, which is Option B.
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Electrostatics describes forces between charges through Coulomb's law, electric fields and field intensity, then uses electric potential to measure energy per unit charge. Capacitors store charge and electrical energy, with capacitance depending on geometry and dielectric material, not simply on the amount of charge present.
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