Physics
A straight wire lying in a horizontal plane carries a current from north to south. (a) What will be the direction of magnetic field at a point just underneath it? (b) Name the law used to arrive at the answer in part (a).
Related Questions
The diagram given below shows magnetic field pattern around a bar magnet. Identify the poles A and B.
The diagrams given below show some magnetic field patterns.
Answer the following questions :
(a) Which pattern shows uniform magnetic field lines?
(b) Which pattern is for a straight current carrying wire?
(c) Which pattern is depicted by current in a loop?
A wire, bent into a circle, carries current in an anticlockwise direction. What polarity does this face of the coil exhibit?
What is the direction of magnetic field at the centre of coil carrying current in (i) clockwise, (ii) anticlockwise direction?