Question

A magnetic needle is placed at different positions of a current carrying conductor. In which position does the magnetic needle has got maximum deflection *
b) Out side the solenoid near to its end
c) Lateral side of the solenoid.
a) Inside the solenoid at the middle

Answer 1

According to the Right hand thumb rule,the direction of the magnetic field is perpendicular to the direct of the current and if a magnetic compass is brought closer to the current carrying conductor, the deflection is maximum