Ac/dc principles and applications final exam With Questions And 100% SURE
ANSWERS
Terms in this set (100)
Chapter 1
Matter Is anything that has mass and occupies space
Conductor Is a material that has low electrical resistance and permits electrons to move through it easily
National electric code Is a standard on practices for the design and installation of electrical products
A ___ is an electrical device that is designed to introduce a specific amount of resistance into a
Resistor
circle
True An insulator is a material that has a high resistance to the flow of electrons
Electron A ___ is the negatively charged particle of an atom
Sulfidation Is the formation of film on the contact surface
True Electricity is the movement of electrons from atom to atom
current Is the flow of electrons in a conductor
Polarity Is the positive or negative state of an object
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, Chapter 3 and 5
Heat and consumed power What is produced when current meets resistance
Resistance Is the opposition to the flow of electrons
Ohms law Is the relationship between voltage, current, and resistance
Resistor Is an electrical device that is designed to introduce a specific amount of resistance into a circuit
False Resistors with no tolerance band have a tolerance of 2%
Series A ___circuit has only 1 path for current flow
Total resistance R1+R2+R3.... etc is the mathematical equation to calculate ____ in a series circuit
True The 3rd band on a carbon composition resistor represents the multiplier for that resistor value
Parallel A ___circuit has more than one path for current flow
What measuring device is widely used in electrical circuits and has replaced analog measuring
Digital multimeter
devices
Voltage, current, and resistance Ohms law is defined as the relationship between
Voltage Watts law states that the current (It) is equal to the watts (Pt) divided by the ____
Electron flow and current A clamp-on ammeter is used to measure ___ in a circuit
Conductor A simple electrical circuit must have a(n) ___ , a voltage source, and a load
False In ohms law, the voltage divided by the resistance equals Watts
Resistance and current A digital multimeter (DMM) is used to measure voltage, ____ , and ____ in Electrical circuits
Chapter 6
False Resistance is the flow of electrons through an electrical circuit
Drop Voltage __ is the amount of voltage used by a device when current passes through it
Add (R1+R2+R3... etc) Total resistance in a series circuit is calculated by applying the following formula
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