Electrical Engineering XYZ MCQs
The EMF induced in a conductor rotating in a bipolar field is:
- DC
- AC
- Both of these
- None of these
Correct answer: 2. AC
Explanation: When a conductor rotates in a bipolar field, it experiences a changing magnetic flux. According to Faraday’s law of electromagnetic induction, the electromotive force (EMF) induced in a conductor is proportional to the rate of change of magnetic flux. In this case, as the conductor rotates, the magnetic flux through it changes continuously, resulting in an alternating current (AC) being induced in the conductor. Therefore, the correct option is AC.