magnetic field due to current can affects a compass. if we use alternating current or direct current, explain how magnetic field will differ for both cases. explain the relainship between distance and magnetic field strength.

Question

anonymous · Answer

Magnetic field will be created in both the cases. The only difference will be that in alternating current the direction of the field will continuously vary.
Magnetic field due to a small current carrying element (a small piece of wire)  follows inverse square law just like electric or gravitational field.

radar · Answer

As Diwakar, the AC will continuously vary to include to changing in direction.