Q. Two inductors are connected in parallel across the terminals of a generator. One has an inductance of L1 = 0.030 H, while the other has an inductance of L2 = 0.086 H. A single inductor, with an inductance L, is connected across the terminals of a second generator that has the same frequency and voltage as the first one. The current delivered by the second generator is equal to the total current delivered by the first generator. Find L.
Q. What must the charge (sign and magnitude) of a particle of mass 1.42g be for it to remain stationary when placed in a downward-directed electric field of magnitude 670N?