Correct option is C
The Oersted (Oe) is a unit of measurement used to quantify the magnetic field strength or magnetic field intensity in the CGS (centimeter-gram-second) system.
- Magnetic field strength (H) describes the intensity of a magnetic field at a point in space.
1 Oe produces a field strength that exerts a specific force on a magnetic dipole.
SI unit of magnetic field strength is A/m (Ampere per meter).
Electric field strength – Measured in volts per meter (V/m).
Electric potential – Measured in volts (V).
Current intensity – Measured in amperes (A).