How will the magnetic field be affected on
- increasing the current through the conductor
- reversng the direction of the flow of current in the conductor
1. On increasing the current through the conductor the strength of magnetic field will increase.
Explanation: The strength of the magnetic field at a distance r from a current carrying conductor is given by B = (μo/2π)I/r. So increasing the current will increase the magnetic field strength.
2. Reversing the direction of current will reverse the direction of the magnetic field.
Explanation: By right hand thumb rule if we reverse the direction of the current out thumb too will point opposite and hence the direction of the fingers will also change to opposite