Which is true about galvanic cell?

In these cells electric current flow from cathode to anode from external circuit.

In a galvanic cell, the half-cell in which oxidation takes place is called anode and it has a negative potential with respect to the solution. The other half-cell in which reduction takes place is called cathode and it has a positive potential with respect to the solution. It involves spontaneous redox reaction and chemical energy is converted into electrical energy.