Transformers only work with AC.
If you put DC into a transformer, all that comes out is smoke.
(a)
Transformers will not work on direct current in electrical systems.
Answer: Option A
Explanation:
Transformers work only on the alternate current of electrical system. And they are not suitable to work upon with the direct current. As the direct current has the property to transfer high voltage directly and is unable to direct the current with high and low voltages, causes the transformer to burn out the coil leading to burning of the transformer circuit and causing smoked transformers.
