Identify Passive Components: Types and Functions…

Q: Which passive component stores energy in an electric field?

Capacitor — Capacitors store energy by accumulating charge on their plates.

Q: What is the primary function of a resistor in an electrical circuit?

To limit current flow — Resistors impede current, opposing its flow in the circuit.

Q: Which of the following components opposes changes in current?

Inductor — Inductors store energy in a magnetic field, resisting current changes.

Q: What unit is used to measure the capacitance of a capacitor?

Farad (F) — Capacitance is measured in Farads (F).

Q: What is the unit of measurement for resistance?

Ohm (?) — Resistance is measured in Ohms (?).

Q: Which component is used to block DC current while allowing AC current to pass?

Capacitor — Capacitors exhibit a reactance that allows AC signals to pass.

Q: What physical property determines the value of a resistor?

Length and material composition — Resistance depends on the material's resistivity and its physical dimensions.

Q: What unit is used to measure inductance?

Henry (H) — Inductance is measured in Henrys (H).

Q: Which component is often used in filtering circuits?

Capacitor — Capacitors filter signals by storing and releasing energy, attenuating certain frequencies.

Q: What is the primary function of a variable resistor (potentiometer)?

To adjust the current or voltage in a circuit — Potentiometers allow adjusting resistance by varying the wiper position.

Question 1 of 10

Which passive component stores energy in an electric field?

Capacitors store energy by accumulating charge on their plates.

Question 2 of 10

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

Resistors impede current, opposing its flow in the circuit.

Question 3 of 10

Which of the following components opposes changes in current?

Inductors store energy in a magnetic field, resisting current changes.

Question 4 of 10

What unit is used to measure the capacitance of a capacitor?

Capacitance is measured in Farads (F).

Question 5 of 10

What is the unit of measurement for resistance?

Resistance is measured in Ohms (?).

Question 6 of 10

Which component is used to block DC current while allowing AC current to pass?

Capacitors exhibit a reactance that allows AC signals to pass.

Question 7 of 10

What physical property determines the value of a resistor?

Resistance depends on the material's resistivity and its physical dimensions.

Question 8 of 10

What unit is used to measure inductance?

Inductance is measured in Henrys (H).

Question 9 of 10

Which component is often used in filtering circuits?

Capacitors filter signals by storing and releasing energy, attenuating certain frequencies.

Question 10 of 10

What is the primary function of a variable resistor (potentiometer)?

Potentiometers allow adjusting resistance by varying the wiper position.

Identify Passive Components: Types and Functions Quiz