Ch. 9
What is the general term for a device that transforms the energy of an electric current into another useful form of energy?
What is a load?
What material allows current to flow through it with no resistance? (General term)
What is superconductor?
What was the early device developed to store electric charge?
What is the Leyden Jar
What device converts absorbed sunlight directly into electricity?
What is photovoltaic cell?
Who built the first electrostatic generator?
Who is Otto von Guericke?
What is the SI Unit of Resistance?
What is Ohm?
What is the method of magnetizing an object by stroking a magnet against the object to permanently magnetize it?
What is magnetizing by contact?
What device consists of one or more electrochemical cells connected in series to produce a single source of current?
What is battery?
What semiconductor device produces light when a direct current is applied?
What is light-emitting diode?
What allows a computer to communicate with the outside world or user to communicate with computer?
What is input/output device?
What is conduction?
What is the line connecting all points where a compass needle points true north?
What is agonic line?
What is a small computer designed for use by one user at a time?
What is personal computer?
What is a single chip that contains a complete CPU?
What is microprocessor?
What is an electric field with even strength throughout?
What is uniform field?
What is the imaginary line that circles Earth halfway between the two magnetic poles?
What is magnetic equator?
What type of generator works by passing a conducting fluid through a magnetic field?
What is magnetohydrodynamic generator?
What type of computer is large and designed for performing complex calculations quickly?
What is super computer?
What number system is based on powers of 16?
What is hexadecimal system?
What uses a narrow strip of metal in a protective, insulated case to limit current through a circuit?
What is fuse?
What are the imaginary lines that indicate the direction and strength of a magnetic field called?
What is an electrical switch operated by an electromagnet called?
What is relay?
What is the largest computer network?
What is internet?
What simple device converts electricity to back-and-forth motion?
What is solenoid?