Chapter 2
How many watts equal one horsepower?
-746 Watts
_________ is a mathematical equation that describes the relationship between voltage, amperage, and resistance. If anyone of the three is changed, it affects the others.
-Ohm's Law
What is Ohm's Law?
-Ohm's Law describes the mathematical relationship between voltage, amperage, and resistance. -In it's simplest form, it states that it takes one volt to push one amp through one ohm of resistance.
What is a(n) Ohm?
-The Ohm is the unit of measure for electrical resistance. -All conductors have some resistance to the flow of electrons, this is measured in Ohms. -Without sufficient voltage to overcome this resistance, current cannot flow.
What is a Watt?
-The Watt is a unit of electrical power. -Watt = volts x amps. -One watt is produced when one Amp flows through one volt of potential difference.
_______ is the is the work that is performed when voltage and amperage are combined. It is the measurement of power. Voltage by itself cannot perform any work, and amps cannot flow without voltage. When a number of amps flow at a given voltage, the result is _______.
-Wattage, Watts.
What are the effects that resistance and power have on the electrical system?
-When resistance is high in a conductor, greater friction is created. By-products of this friction are heat and light.
