Exam 2: Voltage, Current, and Resistance

The opposition to the flow of current is called ________.

-An ohmmeter should ________.

The movement of free electrons through a conductor is called current.

A generator converts electrical energy into mechanical energy.

If a resistor equals , its color code is ________.

Voltage is ________.

-To measure a circuitʹs source voltage, the voltmeter must ________.

A resistor color-coded with brown, black and orange bands has a value of

A resistor color coded with yellow, violet and orange bands has a value of

In order to measure the current in a circuit, an ammeter must ________.

Electrons attract each other.

If a resistor is color coded with orange, orange, orange and silver bands, the resistance equals ________, the lower tolerance limit equals ________ and the upper tolerance limit equals ________.

An element with a relatively large amount of electrons in the valence ring is considered to be a good conductor.

Which unit of charge contains

The voltage measured directly across an open switch in a circuit will be:

For electrical current to flow in a circuit voltage must be applied to that circuit.

A resistor with yellow, violet, orange, and gold bands equals ________.

If a resistor is color coded with red, red, orange and silver bands, the resistance equals ________, the lower tolerance limit equals ________, and the upper tolerance limit equals ________.

A(n) ________ is a material that has many free electrons.

A resistor with orange, orange, red and gold bands has a value and tolerance of ________.