L7 S&C- Electronics

What is the primary role of a resistor in an electrical circuit?

• To resist the flow of current

• To store electrical energy

• To amplify the current

• To convert AC to DC

Which unit is used to measure resistance?

• Ampere (A)

• Ohm (Ω)

• Volt (V)

• Watt (W)

What type of resistor has a fixed level of resistance?

• Variable resistor

• Fixed resistor

• Thermistor

• Special resistor

What is the tolerance level of resistors typically expressed as?

• Ratio

• Fraction

• Decimal

• Percentage

What happens to resistors when they operate?

• They emit light

• They cool down

• They get hot

• They change color

What is the combined resistance of resistors in series?

• It is the average of the resistances

• It is the difference of the resistances

• It is the sum of the resistances

• It is the product of the resistances

What is a potential divider used for?

• To split voltage in a circuit

• To increase current

• To store energy

• To decrease resistance

What is a variable resistor also known as?

• Thermistor

• Potentiometer

• Inductor

• Capacitor

What type of resistor changes its resistance based on temperature?

• Thermistor

• Fixed resistor

• Variable resistor

• Light dependent resistor

Which of the following is NOT a type of resistor mentioned?

• Thermistor

• Super resistor

• Variable resistor

• Fixed resistor