What is the main function of a resistor in a circuit?
To reduce current flow or offer resistance to electricity.
True or False: Resistors are only found in some electronic circuits.
False — they are found in all electronic circuits.
Complete the sentence: Resistors are often used as ______ dividers.
Voltage
What component do resistors help to bias so that it can work correctly?
Transistors.
Name one function of resistors related to capacitors.
To regulate the charging and discharging rate (fix time constants).
What are the two main categories of resistors?
Fixed resistors and variable resistors.
True or False: Fixed resistors have resistances that can be easily adjusted.
False — their resistance only changes slightly with temperature or time.
Variable resistors can act as sensors for what kinds of physical quantities?
Heat, light, humidity, force, or chemical activity.
Complete the sentence: The choice of resistor material depends on its ______.
Purpose
Which material is an old technique with low precision but used for high-energy applications?
Carbon composition
Metal and metal oxide film resistors are preferred because they are more stable and less affected by ______.
Temperature variations.
Which type of resistor is used for both high precision and high power applications?
Wire-wound resistors.
When the highest precision and stability are required, which resistor type is used?
Metal foil resistors.
What is the key parameter of a resistor?
The resistance value.
The resistance value and tolerance of a resistor are indicated by what?
Colour bands on its body.
What does each colour on the resistor’s body represent?
A different number, according to the resistor colour code chart.
