Exams › NEET › Physics

A transformer is used to

1. change the alternating potential
2. change the alternating current
3. prevent power loss in alternating-current flow
4. increase the power of a current source

Correct answer: change the alternating potential

Solution

A transformer works on mutual induction and is used to change AC voltage levels. It does not directly change frequency or increase power; in an ideal case, power remains the same.

Related NEET Physics questions

• Which of the following statement regarding transformer is incorrect?
• Which one of the following statements is true?
• Which statement is incorrect related to induced electric field due to changing magnetic flux?
• A dynamo produces an electric current. It is based on the principle:
• In electromagnetic induction, the induced E.M.F is independent of
• A conductor is moved in a varying magnetic field. Name the law which determines the direction of current induced in the conductor:

⚔️ Practice NEET Physics free + battle 1v1 →