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BJU PhysicalSci 10

BJU Physical Science - Ch 10

QuestionAnswer
The unit used to measure the amount of current that flows past a point in one second. ampere
A modern charge-storage device used in electrical and electronic circuits, consisting of two or more conductive plates or sheets separated by an insulator. capacitor
The SI unit of electrical charge. coulomb
A continuous flow of electrical charges. Current electrical
Charging an object by shifting the paths of its electrons. electrical induction
Like charges repel; unlike charges attract. law of charges
The SI unit used to measure electrical resistance. ohms
An electrical circuit or portion of a circuit with multiple parallel paths so that the current must split up to flow through each load in the circuit. parallel circuit
A material that allows limited electron flow, so it can act as either a conductor or an insulator depending on the circumstances. Semiconductors
A circuit with a single path for all the electrons in it to follow. series circuit
A location (usually a fault) in an electrical circuit where current bypasses a circuit’s load to take a low-resistance path back to the current’s source. short circuit
All electrical phenomena relating to stationary electrical charges and the forces they exert. static electricity
The amount of work required to move a unit charge between two points in a circuit or field; the SI derived unit for potential difference; 1 equals 1 J/C. volt
The SI units of power; 1 joule of energy per second. watt
A material through which heat and electricity easily flow. Good conductors are usually materials that contain mobile electrons, such as most metals. electrical conductor
The field force exerted by electrical charges. It may be repulsive or attractive depending on the kinds of charges interacting. electrostatic force
A material that does not easily conduct thermal energy or electricity. Insulators are poor conductors with tightly bound valence electrons. Electrical insulator
An early charge-storage device that consisted of a jar lined and coated with lead and used electrical induction and grounding to greatly increase its storage capacity. Leyden jar
The energy or work that can be done by charges moving between two points of different voltages. electrical potential energy
The flow of positive charges through a conductor or electrolytic solution. This flow is opposite to the flow of electrons in a wire. conventional current
Electrical current that flows in only one direction. direct current
A complete path for an electrical current. It includes a current source, such as a battery or a generator; a conductor; an electrical load; and a point at which the current returns to the current source. electrical circuit
Any device that purposely converts electrical energy to another form of energy in an electrical circuit. electrical load
A source of electrical potential consisting of one or more voltaic cells (electrochemical cells) connected in series. battery
The property of all electrical circuit elements that impedes the flow of current to some extent. It is measured in ohms. electrical resistance
Law stating that in a DC-circuit component of resistance R, the current (I) through the component is directly proportional to the potential difference (voltage; V) Ohm's law
Created by: heidio