The Biot-Savart law calculates a magnetic field induced by this quantity, of which sums in   and out of nodes are equal according to Kirchhoff's junction rule.
The Biot-Savart law calculates a magnetic field induced by this quantity, of which sums in   and out of nodes are equal according to Kirchhoff's junction rule. Inductance measures a  material's opposition to changes in this quantity, and (*) power equals voltage times it. This  equals voltage divided by resistance, and conventionally is measured in the direction of positive  charge. For 10 points, name this quantity measured in amperes.
The Biot-Savart law calculates a magnetic field induced by this quantity, of which sums in   and out of nodes are equal according to Kirchhoff's junction rule.
electric current