Resistance is the opposition offered to the flow of electrons.
Exactly! A resistor is a device or component used to introduce opposition to current flow in a circuit.
Resistors are designed to have specific amount of opposition to current flow, and may be of many different sizes
and shapes. The size and shape of a resistor will not determine its value however. One as small as 1 inch long
and 1/4 inch in diameter may vary in value from less than one ohm to as much as several million ohms. The
illustration below shows a few of the various resistors used in electrical and electronic circuits.
Which of the resistors below has the more resistance?
The type of material and the temperature.
You have the right idea but you didn't go far enough. Remember, now, we said there were four factors
that determine the resistance of a conductor. They are the type of material used, the length, the cross-sectional
area, and the temperature. Now let's go back to Page 1-3B and read the question again.