Abstract: The hot QCD matter produced in any heavy ion collision with a nonzero impact parameter is produced within a strong magnetic field. The magnetic field is time-dependent and the medium is expanding. In this talk I will describe two types of electric currents produced as a result of this magnetic field: 1. Chiral magnetic current in the presence of topologically non-trivial vacuum. 2. Induction of charged currents due to the combination of Faraday and Hall effects.