def hPrimary(self, prob):
        """
        The primary magnetic field from a magnetic vector potential

        :param Problem prob: FDEM problem
        :rtype: numpy.ndarray
        :return: primary magnetic field
        """
        b = self.bPrimary(prob)
        return 1./self.mu*b
dataset/ETHPy150Open simpeg/simpeg/SimPEG/EM/FDEM/SrcFDEM.py/CircularLoop.hPrimary/original