Question

How can you tell the direction of a magnetic field?

Answer 1

Answer:

using thumb rule

The right hand rule states that: to determine the direction of the magnetic force on a positive moving charge, point your right thumb in the direction of the velocity (v), your index finger in the direction of the magnetic field (B), and your middle finger will point in the direction of the the resulting magnetic force

Answer 2

Answer:

Direction of magnetic field lines around a current carrying conductor can be found by

Explanation:

Right hand thumb rule.Imagine that you are holding a current carrying straight conductor in your right hand such that the thumb points towards the direction of current.Then your fingers will wrap around the conductor in the direction of the field lines of the magnetic field.