Exam 15: Basics of Electrical Systems

A series circuit provides two or more different paths for the current to flow through.

In the formula E = I x R, R represents_____.

Increasing the voltage of an automotive electrical system allows the wires to be smaller yet supply the same electrical power as a low-voltage system with larger wires.

Technician A says moving magnetic fields are a source of electrical energy in an automobile. Technician B says chemical reaction is a source of electrical energy in an automobile. Who is correct?

The resistance of the load(s) in an AC [alternating current] circuit is called ____________________.

Which statement concerning series circuits is NOT true?

What is the name of the formula E = I x R?

A simple on/off switch with one input terminal and one output is a _____type switch.

In a series circuit, current is always ____________________ throughout the circuit.

Name the four basic components of all electrical circuits.

The unit for measuring electrical current is _____.

All the following are variable resistors EXCEPT:

The process of generating electricity by moving a wire through a magnetic field is called ____________________.

Secondary wire is used to power _____.

A _____ is an electromagnet with a movable core that converts electrical current into mechanical movement.

Technician A says the conventional theory of current flow states that current flows from negative to positive. Technician B says the electron current flow theory states that electrons move from negative to positive. Who is correct?

An atom that has lost an electron has a ____________________ charge.

Describe the formula for power (Watt's law).

Technician A says current 14-volt systems are rated at 800 W to 1500 W. Technician B says a higher voltage system requires more amperage to produce the same wattage. Who is correct?

The current in an electrical circuit ____________________ when the resistance increases.