it’s essentially a brushless DC motor with a unique winding pattern. A number of coils — anywhere from six to twenty-four — are wired together with alternating polarity. If one coil is a ...

Car batteries, dry cells and solar cells all provide a direct current (dc) that only flows in one direction. An alternating current regularly changes direction. On a voltage-time graph ...

They are magnetically connected but not electrically connected. A primary voltage drives an alternating current through the primary coil. The primary coil current produces a changing magnetic field.

CBSE section of Jagran Josh has come up with chapter-wise test series of Physics for students of Class 12th. This test series consist of MCQs questions for Physics. All the questions are framed as ...