a copper wire of length 25 cm is in a magnetic field of 0.20T.If it has mass of 10g, what is the mimimun current through thewirethat would cause a magnetic force equal to its weight?
a horizontal wire of length 3.0 m carries a current of 6.0Aand is oriented so that the current direction is 50oSof W. The Earth's magnetic field is due north at this point andhasa strength of 0.14e-4 T. What is the magnitude of the force onthewire?
a circular loop carrying a current of 1.0 A is oriented inamagnetic field of 0.35T. the loop has an area of 0.24m2and is mounted on a axis, perpendicular to themagnetic field,which allows the loop to rotate. i plane of the loopis orientedparallel to the field, what torque is created by theinteraction ofthe loops current and the field?