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What are resistors and how do they work?

• They are electronic components that limit current in a circuit.

• They are used to increase voltage.

• They are used to store energy.

• They are used to measure temperature.

What are the common types of resistors?

• Ohmic resistors, Switchable resistors, Thermistor resistors, Varistor resistors

• Capacitors, Inductors, Diodes, Transistors

• Integrated circuits, Microcontrollers, Sensors, Actuators

• None of the above

What is the basic unit of resistance?

• Ohm

• Volt

• Ampere

• Watt

What happens in a series connection of resistors?

• Their values are added together.

• They have the same voltage across them.

• Their total resistance decreases.

• They can be used to measure current.

What is a voltage divider?

• A resistor network used to divide voltage.

• A device that increases voltage.

• A type of capacitor.

• A method to measure current.

How are resistors used in electronic devices?

• They are used to control current and voltage.

• They are used to store data.

• They are used to amplify signals.

• They are used to convert energy.

What is the purpose of color codes on resistors?

• To identify resistance values.

• To indicate power ratings.

• To show the manufacturer.

• To provide safety warnings.

What is the issue of overload and how to protect against it?

• Overloading a resistor can damage it.

• It is important to choose resistors with appropriate power ratings.

• Fuses are used to protect resistors from overload and overheating.

Calculate the total resistance and current for resistors connected in series with resistances of 20 Ω, 30 Ω, and 50 Ω connected to a 50 V source.

Calculate the total resistance and current for resistors connected in parallel with resistances of 40 Ω, 80 Ω, and 100 Ω connected to a 50 V source.