Tag: kinds of units

Self inductance L has the SI unit Henry (H), which equals volt-second/ampere. From V = L(dI/dt), dimensionally [H] = [V][T]/[A]. Option B: joule×second/(coulomb×ampere) = (V×C×T)/(C×A) = V×T/A = Henry, which is correct. Note that 'coubmb' in option B appears to be a typo for coulomb.

The term epsilon_0 * (d_phi / dt) is the displacement current in Maxwell's equations, which has the same dimensions as electric current.

Electric capacitance of a conductor is the ability with which the conductor can hold the charge.
In SI system, unit of capacitance is farad($F$).
Hence, option D is not matched.

$\text{Kilowatt hour}$ is the $commercial$ unit of $electrical$ ENERGY.

The intensity of magnetic field at a point on the field is defined as the force on a unit north pole placed at that point.
Intensity of magnetization is measured in Oersted as a unit.

Pressure is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. It is defines as force per unit area. The SI unit of pressure is $N/m^2$.

Damping force F = -bv, where v is velocity. Thus, b = F/v. Units of b = (kg * m / s^2) / (m / s) = kg / s.

In the equation S = a + bt + ct^2, each term must have the same units as S (meters). Thus, ct^2 must be in meters. c * (s^2) = m, so c = m / s^2 = m * s^-2.