The contribution of the pulse and alternating magnetic fields on the magnetic effects is examined and compared with that of the static field, using a rotational device by which the pulse and alternating fields are able to be applied to the stationary sample. The followings are found: (i) the substantial time required to reach the maximum magnetic effect in the pulse and alternating fields is much smaller than the time in the static field, (ii) the magnetic effect does depend on the frequency of magnetic field, and (iii) the pulse and alternating magnetic fields make the quasi-stable structure more stable than the static field. The results are discussed and compared with the magnetic effects in flow loops reported elsewhere.