Circuit networks can be reduced to a single current source and a single parallel resistance. This conversion is done in accordance with _____.

What force pushes the electrons through a resistance in a circuit?

What type of resistor operates by moving the wiper arm with a screw of some number of turns?

The voltage drop across any branch of a parallel circuit is the same as _______________ voltage.

In a parallel circuit, the voltage across each branch must be _______________.

What is another term for a variable resistor?

To locate the north pole of an electromagnet, use the _____-hand rule.

The regions formed in the molecular structure of magnetic metals are sometimes called magnetic _____.

In a series circuit, the sum of the voltage drops is _____ the applied voltage.

A variable resistor with two terminals is called a _____.