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Frequent switching of contacts causes sulfidation of silver contacts.

An electric switch uses ____________________ electrification.

Gold-plated contacts are used in high-current applications.

The __________ is used to define power.

__________ power is the actual power used in an electrical circuit.

Semiconductors are made from materials that have __________ valence electrons.

__________ is the process of charging an object.

Power is the rate of doing work or using energy.

Slower heat transfer occurs in materials that are better conductors of heat.

A(n) __________ is a material that has very high resistance to the flow of electrons.