def ReducedElectricalField(E, p=101325, T=293.15):
    """Reduced electric field strength calculation using ideal gas law.

    Args:
        E       :   Electric field.
        p       :   Ambient pressure during discharge.
        T       :   Ambient temperature during discharge.        

    Returns:
        Returns the reduced electric field strength.
    """
    kB = 1.3806485279e-23
    N = p / (kB * T)
    Td = E / N
    return Td / 1e-20
