Question

Explain why a transformer will not work on DC.
Explain why a coil of a transformer needs to be laminated.
Explain why if a transformer increases voltage , it reduces current.

Answer 1

Answer:

hey mate

Explanation:

1.When we use DC sources, the magnetic field produced by a DC current is uniform and does not change. ... Ultimately, a transformer cannot work on DC because, the primary coil will create a uniform and constant magnetic field, which will fail to induce EMF in the secondary coil.

2.The core is laminated to reduce these to a minimum as they interfere with the efficient transfer of energy from the primary coil to the secondary one. The eddy currents cause energy to be lost from the transformer as they heat up the core - meaning that electrical energy is being wasted as unwanted heat energy

3.That means current (I) and voltage (V) are inversely proportional to each other, so when current decreases voltage increases and vice versa. ... A step up transformer increases voltage. It is correct. The current decreases because the total power handled by the transformer is same, on the input side and the output side

hope it help u