Resistors/Capacitors Explained

What is the purpose of resistors in a circuit?

• To increase the current flow

• To amplify the signal

• To decrease the voltage

• To limit the current flow

What unit is used to measure resistance?

• Ohms

• Watts

• Amps

• Volts

How do resistors protect components like LEDs in a circuit?

• By increasing the voltage

• By converting electrical energy into heat

• By amplifying the current

• By reducing the resistance

What does the color coding on resistors represent?

• Power rating

• Tolerance

• Resistance value

• Maximum voltage

How do surface mount device resistors differ from through hole resistors?

• They have a higher power rating

• They are soldered directly onto metal pads

• They are used for high heat applications

• They have a helical groove to control resistance

What is the main function of a capacitor?

• Generate heat
• Produce light
• Convert mechanical energy to electrical energy
• Store and release electrical energy

What happens when a capacitor exceeds its maximum voltage rating?

• The capacitor will increase its capacitance
• The capacitor will decrease its capacitance
• The dielectric material inside the capacitor can break down, leading to a short circuit or explosion.
• The capacitor will start emitting light

What is the unit used to measure capacitance?

• Ohm
• Volt
• Farad
• Newton

What happens when a capacitor is connected to a battery?

• The capacitor becomes a resistor
• The capacitor charges up by accumulating opposite charges on its plates, creating an electric field between them.
• The battery explodes due to overload
• The capacitor discharges all its stored energy instantly

How can a capacitor discharge its stored energy?

• By connecting a load to the circuit

• By converting the stored energy into heat
• By increasing the distance between the plates
• By absorbing more energy from the surroundings