The subprime mortgage crisis was caused by hedge funds, banks, and insurance companies. The first two created mortgage-backed securities. The insurance companies covered them with credit default swaps. Demand for mortgages led to an asset bubble in housing.
The field of dielectrics is a branch of physics that covers how insulating materials separate different electrical charges in a capacitor. A capacitor is a device with two metal plates of opposite charges, with a dielectric insulating material in between the keeps the charges separate.
Electrical breakdown in an electric discharge showing the ribbon-like plasma filaments from a Tesla coil. Electrical breakdown or dielectric breakdown is a rapid reduction in the resistance of an electrical insulator when the voltage applied across it exceeds the breakdown voltage.This results in a portion of the insulator becoming electrically conductive.ue to hydrodynamics breakdown in liquids seems to be more complicated: using two spheres in the gap between the electrodes additional pressure is exerted by the non-linear field strength. Electrical breakdown occurs within a gas (or mixture of gases, such as air) when the dielectric strength of the gas is exceeded.