An ideal transformer (with a sufficiently large inductance and sufficiently low resistance) can pass direct current, but real transformers are not ideal and work only with alternating current. This transformer initially passes direct current, but after a short time the DC voltage drops due to the resistance in the primary winding and the finite inductance of the transformer coils.
This page is a utility for simulating трансформатор в цепи постоянного тока online with specified initial values.









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