Why a transformer can not work with steady current?

Transformers consist of a primary and secondary coil of wire. An emf over the primary wire creates a current through it. A current in the primary wire induces a magnetic field that flows through the nearby area, including through the secondary coil.

Faraday's law says that only a changing magnetic field induces a current. So we need the magnetic field induced by the primary coil to be changing all the time so that we can induce a current in the secondary coil. This requires that the current in the primary coil be changing all the time. And what kind of voltage source changes all the time? Alternating current!

If we tried to use a direct current voltage source like a battery, we would maybe get some current in the secondary coil, but once the current in the primary coil reaches its maximum value, it is no longer changing, and there will be no more induced current in the secondary coil.

total distance travelled = 60 miles

total time taken =1.5 hours

average speed = total distance / total time

60 / 1.5

= 40

therefore, average speed = 40 m/h

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first thing first of the answer is with technology. second thing second thing is that the big bang theory did not happened u see they say it did but what they dont realize is that like dinasures are still a round they might deny it but they and look at these 12 foot human skelteons they find lets see didnt the bible say something about giants. hope this peace.