A solenoidal inductor for a printed circuit board is being redesigned. To save weight, the number of turns is reduced by one-third, with the geometric dimensions kept the same. By how much must the current change if the energy stored in the inductor is to remain the same

Which atomic model was proposed as a result of j. j. thomson’s work?

Explain why electric current cannot exist if a current doesn't have a voltage source.

Two manned satellites approaching one another at a relative speed of 0.550 m/s intend to dock. the first has a mass of 2.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. assume that the positive direction is directed from the second satellite towards the first satellite. (a) calculate the final velocity after docking, in the frame of reference in which the first satellite was originally at rest.(b) what is the loss of kinetic energy in this inelastic collision? (c) repeat both parts, in the frame of reference in which the second satellite was originally at rest. final velocity(d) loss of kinetic energy = ?