You can’t connect it directly to a transformer, but you can connect it to a PHY. The PHY works on the physical layer of Ethernet, it’s the piece of hardware that takes prepared Ethernet ...

The induced voltage causes an alternating current to flow. Transformers can only work with alternating current. Input and output voltages and currents are both alternating (a.c.) Mains voltage is ...

a primary potential difference drives an alternating current through the primary coil the primary coil current produces a magnetic field, which changes as the current changes the iron core ...