type i superconductor.
Type i superconductor is one in which the transition from superconductivity state to normal state in presence of magnetic field occurs sharply at the critical value Hc. ★ They are perfectly diamagnetic. ★ They follow meissner effect strictly. ★ The critical value Hc for type i superconductors is found to be very low, i.e for small value of Hc it behaves normal conductor therefore it is known as soft superconductor.