This quantity is a constant for particles in the inner magnetosphere if the field varies in timescale much longer than the drift period. The phase shift in the Aharonov-Bohm effect is equal to this quantity times electric charge divided by h-bar. (15[1]-5[1])This quantity is equal to the MMF divided (15[1])by (15[1])the reluctance, according to Hopkinson's law. The derivative of this (15[1])quantity with respect to charge is the (*) memristance. This quantity divided by current is equal to inductance. (-5[3])The integral form of Gauss’s law for magnetism states that this quantity (-5[1])is zero. (10[1])The negative (10[4])time derivative of this quantity (10[1])is (10[1])equal to (10[1])the electric (10[1])motive force according to Faraday’s law. (10[3]-5[2])With an SI unit called the weber, for 10 points, identify this quantity that measures the amount of magnetic field through a surface. (10[2])■END■ (10[4])