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.
diâ¢eâ¢lecâ¢tric. 1. a nonconductor of electricity; insulator. 2. a substance in which an electric field can be maintained with a minimum loss of power. 3. of or pertaining to a dielectric substance. [1830â40; di- 3 + electric ]. di`eâ¢lecâ²triâ¢calâ¢ly, adv.