Question

The diagram shows a coil wound around a soft iron bar XY. The polarity at the ends X and Y are

• A. X- north pole, Y- south pole
• B. X- south pole, Y- north pole
• C. X- north pole, Y- north pole
• D. X-south pole, Y- south pole

Answer 1

The correct option is A

X- north pole, Y- south pole

According to clock rule, since the current at the end X is anti-clockwise so it becomes north pole and the current at end Y is clockwise so it becomes south pole.