State what would happen to the direction of rotation of a motor if: i) the current were reversed ii) the magnetic field were reversed iii) both current and magnetic field were reversed simultaneously b) In what ways can a motor be made more powerful?
ScienceClass 10ICSEAnswered 27 Mar 2026
Answer
- i) If the current is reversed, then the direction of rotation would reverse
- If the magnetic field were reversed, then the direction of rotation would remain unchanged
- If both current and the magnetic field were reversed simultaneously then the direction of rotation would remain unchanged
- A motor can be made powerful by winding the coil on to a soft iron core by increasing the number of turns of the