state and explane Ampere's circuital law?

Answer 1

Ampère's circuital law . This equation describes how an electric current generates a magnetic field. Ampère's circuital law states that:
The line integral of the magnetic field around any closed loop is equal to times the algebraic sum of the currents which pass through the loop.

Answer 2

Ampere's Law: The line integral of a magnetic field around a closed loop is equal to the currents contained within the loop.

Basically, this means for any region where the magnetic field is defined, the current generating the magnetic field can be precisely determined - Ampere's work was significant mainly because it established that magnetic fields were generated by moving electric charges, rather than magnetic monopoles.

Also, to the person above, V=IR is Ohm's Law, not Ampere's.

Answer 3

V=IR
Voltage equals current times resistance.
A 1 Volt battery can push 1 Amp of current through a 1 Ohm resistor.
A 10 Volt battery can push 10 Amps of current through a 1 Ohm resistor.
A 1 Volt battery can push one tenth of an Amp of current through a 10 Ohm resistor.
An ideal 1 Volt battery could push an infinite amount of current through a zero resistance wire, but all real wires have some small resistance and all real batteries have a limited ability to supply current.