Exam 3: Understanding Electricity Basics

Name the unit of measure for current.

_____________________ are much more accurate than voltage testers.

____________________ cause distortion of the voltage and current AC waveforms.

The rate at which an electrical load uses electrical energy or the rate at which electrical energy is produced is called ____________________.

What is the procedure for testing a circuit with a voltmeter if the polarity is unknown?

_____________________ are designed to measure more than one electrical value.

Voltmeters are used to determine the amount of resistance to the earth when the resistance to earth through a grounding electrode is unknown.

Why is alternating current (AC) transmitted at high voltages?

In ____________________ current systems the current flows in one direction only.

____________________ is the speed at which the current reverses direction in an alternating current circuit.

Electricity is the flow of ____________________ through a circuit.

What are the two types of ammeters?

What is the equation that represents Ohm's Law?

Opposition to electron flow is called resistance.

Nonlinear loads are load types where the load impedance is not constant.

What are the three ways that PV modules or batteries can be wired together to get a desired system voltage and current?

An ammeter is an instrument that measures a precise amount of voltage.

Amperage is the rate of flow of the electrons.

What voltage and phase are residential applications?

Many electric utility companies generate electricity by using ______________________ generators powered by coal, hydro, nuclear, natural gas, or oil.