Exam 1: Introduction

Troubleshooting means finding out why a circuit is not doing what it is supposed to do.

When you reduce a current source to zero

The second approximation of a dc voltage source includes internal resistance.

Which approximation is generally the best choice because it is easy to use and does not require a computer?

Thevenin voltage is defined as the voltage across the load terminals when

An ideal dc voltage source produces a load voltage

When can the source resistance be ignored?

When can the source resistance of a current source be ignored?

In a circuit,voltages are usually measured with respect to

Whenever two vertical bars are used in an equation,it means

A Thevenin circuit cannot be converted to a Norton circuit.

A law summarizes a relationship that does not yet exist in nature.

Norton's theorem states that the load voltage equals the Norton current times the Norton resistance in parallel with the load resistance.

A derivation is a formula produced without the use of mathematics.

With an ideal voltage source,only the load current changes when the load resistance changes.

The Thevenin voltage is sometimes called

Coulomb's Law states that the force of attraction or repulsion between two charges is directly proportional to the charges and inversely proportional to the square of the distance between them.

The different levels of approximation are an ideal approximation,a second approximation,a third approximation,and an exact answer.