Question

Explain ! A transfer cannot be used to step up d.c. voltage ​

Answer 1

Answer:

a transformer can't step up d.c. voltage

Explanation:

When a d.c. voltage source is applied across the primary of the transformer the current in the primary could remains constant. Hence there is no change in the magnetic flux linked with the secondary cook is zero . Thus a transformer can't step up d.c. voltage

Answer 2

Answer:

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